I think a Conservation DLC or Endangered Species DLC would be amazing. I also think a future update associated with this DLC could introduce some new features focusing on in game conservation.
The idea of obtaining animals that are not conventional really appeals to me, such as obtaining an extremely rare, or an extremely expensive species, or obtaining a "special critically endangered species" for our zoo's could be an interesting concept. This feature could add a new dynamic playing experience to the game and to the animal market.
Out of the current animals in the game, the species that best describes these features would be the Giant Panda. In reality there are only 1,864 Giant Panda left in the wild, and you need to pay the Chinese government 1 million USD just to lease a Giant Panda for one year, previously you needed to purchase Giant Panda’s in breeding pairs (minimum 2 million dollars a year). I think obtaining one for your zoos could be slightly different or harder to obtain in the marketplace.
Maybe an achievement could unlock very Critically Endangered species? Maybe the breeding mechanics can be tweaked for some special animals that are extremely rare and don't breed well in captivity. In addition maybe some animals can be REALLY hard to obtain? Or REALLY hard to breed?
Below I listed some cases of Lazarus species, Critically Endangered species, and Extinct in the Wild species that I would love to see in a Conservation DLC. As well as some conservation success stories.
NORTH AMERICA
1 - Cuban Solenodon (Endangered) (Lazarus species) a small mammal endemic to Cuba and the only species in the genus Atopogale. It is unique among mammals because it has modified salivary glands that can produce a toxin that acts as venom. It was originally discovered in 1861, but it was presumed extinct after none were found between 1890 and 1970. However, there were sightings in 1974, 1975, 1999 and 2003. This species could be an exhibit species (currently Planet Zoo has no exhibit mammals). However, less than 40 Cuban Solenodons have ever been caught, because of this its population in the wild is unknown.
2 - Black Footed Ferret (Endangered) (Lazarus species) an endangered mustelid from North America. Declared extinct in 1979, a small population was rediscovered on a farm in Wyoming in 1981. Due to disease and inbreeding the population dropped to a low of 18 individuals, a captive breeding program was introduced in 1987 in order to save the species from extinction. In 1991 reintroductions into the wild began, about 1,200 ferrets are thought to live in the wild currently. In addition this species could utilize the burrowing mechanics implemented in update 1.8. Currently 177th on Metalist.
3 - Cuban Crocodile (Critically Endangered) a freshwater crocodilian endemic to Cuba. Only 3,000 individuals are left in the wild. However they are relatively common in captivity, the Zapata Crocodile Farm in Cuba has 5,000 individuals. Two famous Cuban Crocodiles that used to belong to Fidel Castro currently live at Skansen Aquarium in Sweden. This species could be relatively easy to add to the game by reskinning the Saltwater Crocodile model.
4 - Axolotl (Critically Endangered) a critically endangered amphibian only native to Lake Xochimilco, Mexico. A study in 2013 found only 2 Axolotl in the Lake. Currently it is estimated that there are under 1,000 adult axolotls remaining in the wild, the exact number of individuals is unknown. The species suffers from habitat loss due to the encroachment of Mexico City, and the pollution associated with this, the numbers are currently declining. This species would be a great fit for an aquatic exhibit similar to the terrapin exhibit.
SOUTH AMERICA
5 - Chacoan Peccary (Endangered) (Lazarus species) an endangered Peccary species from South America. Fossils were discovered in 1930, but a living Chacoan Peccary wasn't discovered until 1971. This species could add another South American animal to Planet Zoo. There are only 3,000 Chacoan Peccary on earth, however they are relatively common in zoos.
6 - Bush Dog (Near Threatened) (Lazarus species) a very elusive canid from South America and the only species in the genus Speothos. Fossils were discovered in 1842, but the animal wasn't discovered until 1843, the species was accidentally misidentified and this mistake was not corrected until the 1900s. The Southern Bush Dog subspecies was photographed for the first time in 2016. Due to the elusive nature of Bush Dogs the exact numbers are unknown, but studies estimate anywhere from 10,000-15,000 left in the world. This species could add another South American animal to Planet Zoo. Currently 69th on Metalist.
7 - Monito del Monte (Near Threatened) (Lazarus species) a small arboreal marsupial from South America and the only species in the genus Microbiotheria. It was only known from fossils until 1894 when a living Monito del Monte was finally discovered in Chile. The number of Monito del Monte is unknown in the wild, however they have been kept in captivity. This species could add another South American animal to Planet Zoo and this species could be an exhibit mammal.
8 - Panamanian Golden Frog (Extinct in the Wild) an amphibian endemic to Panama. They were filmed in 2006, for the BBC documentary "Life in Cold Blood". However, that region of Panama was hit by the Chytrid fungus (a fungus responsible for the decline of 501 amphibian species worldwide), and therefore remaining wild frogs were captured to prevent extinction. Subsequent trips to the region have not found any Panamanian Golden Frogs. One of the last wild individuals can be seen in the documentary Life in Cold Blood. There are 1,000 Panamanian Golden Frogs left, all living in captivity. This species could really draw attention to the Chytrid fungus that has been responsible for the worldwide decline of amphibian species, in addition this species could be an exhibit similar to other frog exhibits in the game.
9 - Golden Lion Tamarin (Endangered) a primate endemic to Brazil. In 1969 only 150 Golden Lion Tamarins were thought to be left in the wild. It was declared critically extinct in 1996. Due to breeding programs the number of individuals in the wild is currently 3,200. But the species is facing threats from logging, deforestation, and fragmentation of the Amazon Rainforest, and from illegal poaching and capture for the pet trade. This species can really bring attention to the deforestation the Amazon rainforest is facing. In addition, this species could add another South American animal to Planet Zoo. Currently 29th on Metalist.
AFRICA
10 - Scimitar Horned Oryx (Extinct in the Wild) an ungulate from the Sahara desert of Africa. Declared extinct in the wild in 2000, by then the only remaining Scimitar Oryx's were found in captivity. In 2015 there were 1,750 individuals in breeding programs. The species began reintroductions into the wild in 2016. By 2021 there were 400 individuals in the wild. In addition this species could add another animal to the desert biome. Currently 37th on Metalist.
11 - Addax (Critically Endangered) an ungulate from the Sahara desert of Africa. Less than 500 individuals remain in the wild. However, this species is common in captivity, with over 600 Addax living in captivity. It is currently kept in zoos in Europe, Asia, North America, Africa and Australia. In addition to being a relatively common zoo animal that highlights the need for conservation, it could also add another animal to the desert biome. Currently 48th on Metalist.
12 - Indri (Critically Endangered) the largest lemur species endemic to Madagascar, Africa. Indri are revered in legends by people across Madagascar. The species is critically endangered due to the fragmentation and deforestation occurring in Madagascar. The number of Indri in the wild is unknown, and estimates vary wildly from 1,000-10,000 individuals. However, Indri are not common in zoos (but neither are Proboscis Monkeys and Chinese Pangolins and they are in Planet Zoo) so I'd be happy with this species personally.
13 - Sifaka (Critically Endangered) a species of lemur endemic to Madagascar, Africa. Sifaka lemurs are more commonly kept in captivity than Indri. In addition several species of Sifaka are also critically endangered. Silky Sifaka (Critically Endangered) are an extremely rare Sifaka subspecies. There are estimated to be between 100-1,000 Silky Sifaka left making it one of the most endangered primates on earth. However, there are no Silky Sifakas kept in zoos. Golden Crowned Sifaka (Critically Endangered) a subspecies of Sifaka that wasn't described by science until 1988. The exact population of Golden Crowned Sifaka is unknown. Estimates of Golden Crowned Sifaka vary wildly from 6,000-10,000 individuals, to as many as 18,000. Furthermore, Sifaka were popularized in North America from the popular PBS children's show "Zoboomafoo".
14 - Chapman's Pygmy Chameleon (Critically Endangered) (Lazarus species) one of the smallest lizards on earth and endemic to Malawi, Africa. Discovered in 1992, but not seen again until 2016. Several species of Pygmy Chameleon are critically endangered, deforestation and fragmentation of habitat is a big factor in this. The exact number of Chapman's Pygmy Chameleon's is unknown, it is probably the rarest Chameleon species, and possibly the rarest lizard in the world. A 2014 assessment also found that 36% of the world's chameleon species are threatened with extinction. In addition Planet Zoo could really use a Chameleon species for the exhibits.
15 - Somali Wild Donkey (Critically Endangered) a desert dwelling ungulate from the Horn of Africa. There are fewer than 1,000 individuals left in the wild and less than 200 individuals in captivity. This species would add another equid species to the game (the other species being the Zebra) and it would add another species for the desert biome. However, the name of this animal is A-S-S and I both literally and jokingly think it won't ever be included in the PLanet Zoo because of that silly reason. This species would be relatively easy to add by reskinning the Zebra model. Currently 71st on Metalist.
16 - Drill (Endangered) one of the worlds least known monkey species, they are found in Western Africa, and are closely related to the Mandrill. Very little is known about this species, the first Drill ever photographed in the wild was in 2010. Drill numbers have been declining rapidly due to illegal poaching, the illegal pet trade, and hunting for bushmeat. Due to the elusive nature of this species the population is unknown but presumed to be between 3,000-8,000 individuals. Despite their elusive behavior they are kept in approximately 40 zoo institutions worldwide, the largest captive population are 174 individuals kept at the Drill Rehabilitation and Breeding Centre in Nigeria.
17 - Eastern Black Rhinoceros (Critically Endangered) or South Central Black Rhinoceros (Critically Endangered) are two rhinoceros subspecies native to Africa. There are 3 subspecies of Black Rhinoceros, the Eastern Black Rhinoceros (740 individuals) and the South Central Black Rhinoceros (2,200 individuals) are both Critically Endangered. While the last Western Black Rhinoceros sighted in the wild was 2006, and the last captive Western Black Rhinoceros died in 2011. Adding a Black Rhinoceros to Planet Zoo would be relatively easy by reskinning the White Rhinoceros model. Currently 44th on Metalist.
EUROPE
18 - Wisent or European Bison (Near Threatened, previously Extinct in the Wild) an ungulate and the largest land animal in Europe. In the 19th Century there used to be three living species of Wisent, however the last Caucasian Wisent was killed in 1927, and the last Carpathian Wisent was killed in the mid-1800s. The last wild European Bison was shot in 1921, but captive individuals were successfully reintroduced to reserves in Poland in 1951. There are currently 1,000 wild European Bison living in the Białowieża Forest in Poland-Belarus. In addition this species would be relatively easy to add to the game by reskinning the American Bison model, and could add another European species. Currently 91st on Metalist.
19 - Iberian Lynx (Endangered) a felid from Europe, these lynx are highly dependent on local rabbit population numbers (ie: less rabbits = less lynx). By the year 2002 there were only 94 Iberian Lynx remaining in the wild. By 2021 due to a combination of captive breeding programs, the introduction of rabbits to their territory, and conservation efforts there were 1,111 Iberian Lynx in the wild. This species could add another European species to the game, and would be relatively easy to add by reskinning the European Lynx model. Currently 47th on Metalist.
20 - European Mink (Critically Endangered) a critically endangered mustelid from Europe. Due to a complex amount of factors including, poaching, habitat loss, competition from other predators and human encroachment European Mink have been declining in the wild since the 1800s, and the current population is predicted to decline 80% further. There are currently 30,000 wild European Mink across Europe and Asia with numbers expected to drop. The European Mink EEP conservation program currently has 214 European Mink in captivity. This species would be relatively easy to add by reskinning the Giant Otter model, and would add another European species to the game.
21 - Mediterranean Monk Seal (Endangered) a seal native to the Mediterranean Sea. In 1997 there was a massive die-off event where 200 Mediterranean Monk Seals, or ⅔ of the entire population died for unknown reasons off the coast of the Sahrawi Arab Republic, Africa in the Atlantic Ocean. In 2015 the species threat level was reduced from critically endangered to endangered. Currently, there are less than 700 Mediterranean Monk Seals in the wild, and these isolated populations are scattered and unable to breed with each other. There are no Mediterranean Monk Seals in captivity, the species has been kept in captivity in the past but has never given birth in captivity. This species would be relatively easy to add to Planet Zoo by reskinning the Grey Seal model.
ASIA
22 - Domestic Dromedary Camel (Common, Domesticated) an ungulate from Africa and Western Asia. The wild Dromedary was domesticated around 4,000 years ago, but it went extinct 2,000 years ago. The current Dromedary populations living in the wild are domesticated Dromedary Camels. Domestic populations became feralized after escaping captivity and began reproducing in the wild. The largest population of domestic Dromedary in the wild are in Australia, the amount of Dromedary in Australia is estimated at 1 million individuals. This species would add another species to the desert biome and would be a great species in Planet Zoo to focus on invasive species (since they are from Africa originally and the largest population is in Australia). Currently 26th on Metalist.
23 - Przewalski's Horse (Endangered, previously Extinct in the Wild) an endangered equid from the steppes of Asia. In 1969 the last wild Przewalski's horse, a single stallion, was discovered in the Gobi Desert. By World War II only two zoos on earth had Przewalski's Horses in captivity, war torn Munich, Germany and war torn Prague, Czechia. By the late 1950s only 12 Przewalski's horses remained on Earth. In 1979 to avoid inbreeding, a concerted program of population management to maximize genetic diversity began, and by 1990's there were over 1,500 individuals. As of 2020 there were 1,200 individuals living in the wild or nature reserves, and 760 individuals in zoos (a small population of 100 individuals lives in the radiated Chernobyl Exclusion Zone in Ukraine-Belarus, Europe). In addition this species could add another equid species to the game (the other being the zebra) and could add another species from Northern Asia. This species would be relatively easy to add by reskinning the Zebra model. Currently 3rd on Metalist.
24 - Amur Leopard (Critically Endangered) a highly endangered leopard species from East Asia. The Amur Leopard might be the rarest felid species in the world. In 2007 there was estimated to be only 19-27 Amur Leopards living in the wild. But by 2015 that number had almost doubled to 57 individuals. And by 2021 there were 110 individual Amur Leopards living in the wild. In addition there were 173 Amur Leopards in captivity as of 2011. This species would be relatively easy to add to Planet Zoo by reskinning the Snow Leopard model, and could finally add a true leopard species to Planet Zoo. Currently 2nd on Metalist.
25 - François’ Langur (Critically Endangered) or Delacour's Langur (Critically Endangered) two monkey species that are native to Southeast Asia. In 1983 there was estimated to be between 4,000-5,000 François’ Langur left in the wild. Currently the exact population size is unknown, there are estimated to be between 1,900-2,150 individuals remaining in the wild. There are 60 François’ Langur in North American zoos. Delacour's Langur is endemic to Vietnam, As of 2010, less than 250 Delacour’s Langur were believed to remain in the wild, with 19 more individuals in captivity. Plans to reintroduce Delacour’s Langur to an isolated UNESCO heritage site in Trang An, Vietnam began in 2017. As of 2021 there are 300 individuals remaining. This species could add another monkey from Asia to Planet Zoo. François' Langur is currently 151st on Metalist.
26 - South China Tiger (Critically Endangered, probably Extinct in the Wild) a tiger subspecies endemic to Southern China. The South China Tiger might be extinct in the wild, in 2007 there was a photograph taken of a supposed South China Tiger, however scientists have since debunked this photograph as fake. No South China Tiger has been reliably sighted in the wild since the 1970s. Currently 150 South China Tigers exist in zoos. Although any Critically Endangered tiger subspecies (Malayan Tiger 120 individuals in wild; Indochinese Tiger 252 individuals in wild, Sumatran Tiger 679 individuals in wild) could be relatively easy to add to the game by reskinning the Bengal or Siberian tiger models and it could add another species to Northern Asia. Sumatran Tiger currently 171st on Metalist.
27 - Javan Rhinoceros (Critically Endangered) an Asian rhinoceros subspecies, once the most widespread now only found on the island of Java, Indonesia. Possibly the rarest mammal on Earth, only 74 individuals exist, the Javan Rhinoceros is poached for their horns which can get up to $30,000 USD per kg. Javan Rhinoceros are notoriously difficult to keep alive in captivity (the entire point of Planet Zoo) therefore a better option might be the Sumatran Rhinoceros. Sumatran Rhinoceros (Critically Endangered) is the smallest Rhinoceros species. Similar to the Javan Rhinoceros, the Sumatran Rhinoceros was once widespread across Asia, but in 2019 the last Sumatran Rhinoceros in Malaysia died, officially extirpating this species from mainland Asia. Presently Sumatran Rhinoceros are only found on the islands of Sumatra, Indonesia and recently in 2016 Sumatran Rhinoceros were discovered on the island of Borneo, Indonesia. Fewer than 80 individuals are left in the wild, and the numbers could be as low as 30 individuals left. However, an official study to determine the exact population numbers is currently underway. Sumatran Rhinoceros have been kept in zoos in the United States and Europe most notably at the Cincinnati Zoo, currently there are 7 Sumatran Rhinoceros' in captivity all at the Sumatran Rhino Sanctuary in Indonesia. Sumatran Rhinoceros is currently 83rd on Metalist.
28 - Père David's Deer (Extinct in the Wild) an ungulate from China. By the 1800s the only Père David's Deer on earth belonged to the emperor of China and were found only in the Nanyuan Royal Hunting Garden, near Beijing. A flood in 1895 led to several deer either dying or escaping and fewer than 30 individuals remained. In 1900 German troops invaded and occupied Beijing, the remaining deer were killed and eaten by troops extirpating the population from China. However, several deer had been sent to zoo's in Europe making the species Extinct in the Wild, and so a breeding population was formed. There are presently over 5,000 Père David's Deers living in captivity, and a further 950 reintroduced to China. This species would be relatively easy to add by reskinning the Fallow Deer model. Currently 76th on Metalist.
29 - Eastern Black Crested Gibbon (Critically Endangered) or Hainan Black Crested Gibbon (Critically Endangered) two gibbon subspecies from Southeast Asia. The Hainan Gibbon is only found only the island of Hainan in China. In the 1950s 2,000 gibbons were in the wild. By 2003 the number had dropped to 13. A 2014 study found 22 gibbons remaining in the wild, but split between fragmented groups making the Hainan Gibbon the rarest primate on earth. Eastern Black Crested Gibbons were not seen in the wild from the 1960s-2000s and presumed extinct, until a small population were rediscovered in Vietnam in 2002. In 2005 there were between 35-37 individuals remaining in the wild in Vietnam. But in 2006 a small population of Eastern Black Crested Gibbons were found in Guangxi, China.
30 - Tonkin Snub Nosed Monkey (Critically Endangered, Lazarus species) a primate species found in East and Southeast Asia, these species are easily identified by their "snub" noses. The species was presumed to be extinct until a population was rediscovered in 1989. By 2002 there were 60 individuals documented. Currently between 160-250 individuals remain in the wild. Snub Nosed Monkeys are unique among primates for being found at very high elevations, and Tonkin Snub Nosed Monkeys can be found at elevations as high as 1,200m (~4,000 ft).
31 - Saiga Antelope (Critically Endangered) an ungulate from Northern Asia and European regions of Russia and Kazakhstan. Similar to Javan Rhinoceros, Saiga Antelope are also poached for their horns. Between 1980 and 2014 several mass die-off events took place where tens of thousands (and in some cases hundreds of thousands) of Saiga Antelopes suddenly died. In 2015 an unusually large event occurred where 120,000 Saiga Antelope died (the entire population worldwide was estimated to be 250,000) meaning approximately half of the Saiga Antelope on Earth died in the year 2015. The exact cause of deaths is unknown, but presumed to be an unidentified disease. This species could add another species to the game from Northern Asia and add another European species. Currently 41st on Metalist.
32 - Saola (Critically Endangered) an extremely rare, elusive ungulate endemic to Vietnam. First discovered in 1992, it was first photographed in 1993. It is so rare it has been nicknamed the "Asian Unicorn" and has only been documented in the wild 4 times since. A saola was photographed in 1998, 1999, and most recently in 2013, while a Saola was caught by local villagers in 2010 (and subsequently died). The true number of wild Saola is unknown, but there is estimated to be a couple hundred left in the wild. Currently 193rd on Metalist.
33 - Chinese Alligator or Yangtze Alligator (Critically Endangered) a freshwater Alligator endemic to China. It is considered the most endangered crocodilian on earth. In 2018 there was estimated to be 300 Chinese Alligators remaining in the wild. However, as of 2016 over 20,000 Chinese Alligators were kept in captivity, making it a relatively common zoo animal for a Critically Endangered species. This species could be relatively easy to add to Planet Zoo by reskinning the American Alligator model, in addition there are only two Alligator species on earth and Planet Zoo already added the other species in the North America DLC.
34 - Yangtze Giant Softshell Turtle (Critically Endangered) a freshwater turtle endemic to China. It is the largest freshwater turtle species at 100 cm long and over 220 lbs (100kg). In the year 2018 two wild turtles were discovered, more recently in 2021 a female Yangtze Giant Softshell Turtle was discovered in Vietnam. The Yangtze Giant Softshell Turtle has been kept in captivity, currently there are 6 individuals left (1 in China, 5 in Vietnam). This species could be a habitat reptile in Planet Zoo.
35 - Chinese Giant Salamander (Critically Endangered) a giant salamander endemic to China. The South Chinese Giant Salamander (Critically Endangered, possibly Extinct) subspecies is possibly extinct in the wild, while the Chinese Giant Salamander subspecies has approximately 50,000 individuals left in the wild. There are over 2 million Chinese Giant Salamanders in breeding programs and zoos. Zoos in the UK, Germany, Czechia, Netherlands, USA and Japan have held Chinese Giant Salamanders in captivity outside of zoos China. This species could be the first habitat amphibian in Planet Zoo. Currently 84th on Metalist.
OCEANIA
36 - Tasmanian Devil (Endangered) a carnivorous marsupial endemic to Tasmania, Australia and the second largest carnivore in Australia. There have been major declines in Tasmanian Devil populations historically, with major epidemics in 1909 and the 1950s. And in 1996 an epidemic of Devil Facial Tumor Disease caused the population to decline up to 80%. At the same time in the mid-1990s approximately 10,000 Tasmanian Devils were being culled each year. As of 2008 there are only 10,000-15,000 Tasmanian Devils left in the wild. In addition this species could utilize the burrowing mechanics implemented in update 1.8. Currently 4th on Metalist.
37 - Northern Hairy Nosed Wombat (Critically Endangered) a terrestrial marsupial only found in the Epping Forest National Park, Australia. The park was established with the sole purpose of protecting the 300 remaining wombat individuals, which are only found in a 3 km square (~1.2mi square) area of the park. This species could add another animal from Oceania/Australia to Planet Zoo and utilize the new burrowing mechanics introduced in update 1.8.
38 - Numbat (Endangered) a marsupial native to Australia. The Numbat used to range across Southern Australia, however they have been extirpated from 99% of their former range. Currently 1,000 Numbat individuals live in the wild in fragmented populations unable to breed with each other. This species could add another animal from Oceania/Australia to Planet Zoo. In addition this species could utilize the burrowing mechanics implemented in update 1.8. Currently 140th on Metalist.
39 - Crested Gecko (Vulnerable) (Lazarus species) a gecko endemic to the island of New Caledonia in the South Pacific. The gecko was first described by science in 1866. The gecko was thought to be extinct for about 100 years until it was rediscovered on the Isle of Pines, New Caledonia in 1994. The Crested Gecko faces threats from the illegal pet trade, however exportation of lizards from New Caledonia is currently prohibited. Despite this the Crested Gecko has become one of the most popular reptiles to keep as a pet globally. Due to the pet trade the Crested Gecko is no longer at risk of extinction. This species could add another animal from Oceania to Planet Zoo, and another exhibit animal.
BIRDS
40 - California Condor (Critically Endangered) a large bird of prey native to the United States. They can grow up to 140cm (1.4m) long, weigh over 30 lb (~14kg), and have wingspans over 300 cm (3m) (~10ft). In 1987 the last remaining 27 individuals were caught in California and placed into breeding programs. 1991 marked the first reintroduction of California Condors into the wild. By 2021 there were 504 California Condors left on earth.
41 - Hawaiian Goose or Nēnē (Near Threatened, previously Extinct in the Wild) the rarest goose species on earth. This goose is endemic to Hawaii, in the South Pacific. Due to hunting and the introduction of invasive predators the Nene almost went extinct and by 1952 there were only 30 Nene left. However, it was successfully bred by conservationists, and by 2004 there were 800 wild Nene and 1,000 more in zoos. This species could add another animal from Oceania to Planet Zoo.
42 - Hawaiian Crow or ʻalalā (Extinct in the Wild) the most endangered corvid in the world, they were endemic to Hawaii in the South Pacific. In 1994 there were only 31 Hawaiian Crows left on earth (19 wild individuals and 12 in captivity). The last two wild Hawaiian Crows died in 2002. As of 2014 there were only 115 individuals left. In 2016, 30 Hawaiian Crow were reintroduced into the wild but sadly the last reintroduced crow died in 2020, thus the Hawaiian Crow has gone Extinct in the Wild twice. This species could add another animal from Oceania to Planet Zoo.
43 - Spix's Macaw (Extinct in the Wild) a parrot species endemic to Brazil. In 1987 only 17 Spix's Macaws were known (all captive birds). By 1990 the number had dropped to 15 in captivity and one in the wild, the low point for the species' population. There was a sighting of a wild Spix's Macaw in the year 2000. In 2016 another Spix's Macaw was sighted in the wild, it is unknown if it was a pet that escaped captivity, or if it was the first wild Spix's Macaw seen in 16 years. Currently there are between 60-80 Spix's Macaws on earth in captive breeding programs.
44 - Edward's Pheasant (Critically Endangered) a pheasant endemic to Vietnam. First described in 1896, a subspecies was discovered in 1964 and named the Vietnamese Pheasant (Critically Endangered). These pheasants suffer from deforestation, poaching, and the effects of defoliation of foliage as a result of the Vietnam War. Numbers in the wild for both subspecies are unknown but are assumed to be under 250 individuals combined. They are relatively common in zoos and breeding programs however and 1,000 Edward's/Vietnamese Pheasants may live in captivity. This species would be relatively easy to add to the game by reskinning the Indian Peafowl model.
45 - Philippines Eagle or Monkey Eating Eagle (Critically Endangered) a large eagle endemic to the Philippines. This eagle can measure 102 cm (1.02m) in length, weigh 17.6 lb (8kg), and have a wingspan of 220cm (2.2m) (7 ft 3 inches). 1994 the number of Philippines Eagles was estimated between 180-500 individuals. In 2015 there were estimated to be 600 individuals left in the wild and 36 individuals in breeding programs throughout the Philippines. Around 50 Philippines Eagles have been kept in zoos in Europe, USA and Japan, the last being kept at the Antwerp Zoo, Belgium in 1988. 2021 there are estimated to be 400 breeding pairs of Philippines Eagles left in the wild.
46 - Takahē (Critically Endangered) (Lazarus species) a flightless bird endemic to New Zealand. Fossils were discovered in 1847, but the bird wasn't described by science until 1850. By 1898 no more Takahe could be found in the wild and the bird was presumed to be extinct. 1948 Takahe were rediscovered in an isolated part of the Southern Island, New Zealand. 1982 the population of Takahe was only 118 but thanks to conservation efforts by 2019 the population of Takahe was 418 individuals. This species could add another animal from Oceania/Australia to Planet Zoo.
47 - Kākāpō (Critically Endangered) (Lazarus species) a flightless parrot endemic to New Zealand. These parrots are nocturnal and can live up to 100 years. Efforts to save the Kakapo started as early as 1891. But by the early 1970s it was unknown if the Kakapo was extinct or alive. Finally Kakapo were located in 1974, and in 1977 several dozen were found on a remote predator free island. 2019 there were 200 Kakapo remaining. This species could add another animal from Oceania/Australia to Planet Zoo. Currently 105th on Metalist.
48 - Night Parrot (unknown, possibly Endangered) (Lazarus species) a nocturnal parrot endemic to the deserts of Australia. The Night Parrot has been shrouded in mystery for decades and is still one of the rarest most elusive birds on the planet. The bird was only known from a few specimens collected in the 1860s and 1870s. There were sightings in 1912, but it was presumed to be extinct until they were sighted again in 1979. There was a possible sighting in 2005, while a carcass of a Night Parrot was found in 2006, and another carcass was found in 2012. Then in 2015 a small population of Night Parrots were finally discovered by researchers. The current number of Night Parrots is unknown but it is presumed to be between 50-250 individuals. This species could add another animal from Oceania/Australia to Planet Zoo.
MARINE (controversial animals for a controversial DLC)
49 - West Indian Ocean Coelacanth (Critically Endangered) (Lazarus species) a lobe finned fish found in the Indian Ocean. The Coelacanth had been known only from fossils and was presumed extinct for 65 million years until its rediscovery in 1938 when a fishing trawler in the Indian Ocean caught a living Coelacanth. The fish had been historically known to local fisherman as "Gombessa", but the Coelacanth was finally identified in 1938 and is perhaps the best known case of a Lazarus species to date, a second Coelacanth was discovered in 1952. The current population of West Indian Ocean Coelacanth is estimated at 370 individuals.
50 - Vaquita (Critically Endangered, or Extinct in the Wild) a small porpoise endemic to the Gulf of California. The Vaquita is the smallest cetacean on earth at only 150 cm (1.5m) long and 95 lb (43 kg). It is arguably the most endangered marine animal and cetacean on earth. In 2007 there were estimated to be only 150 individuals remaining. In the year 2017 two individuals were caught, and one captured Vaquita subsequently died from shock. By 2018 it was estimated there were less than 19 individuals. The current population is unknown. In 2019 researchers reported seeing 6 Vaquita porpoises. However the species is presumed close to extinction and functionally extinct with likely less than 10 individuals remaining.
51 - Yangtze River Dolphin or Baiji (unknown, possibly Extinct) a freshwater dolphin endemic to the Yangtze River, China. By 1997 a study found 13 remaining individuals. The last known living Baiji died in captivity in 2002. A Baiji was sighted in 2004, and a major expedition was launched in 2006, but failed to locate any dolphins in the Yangtze River. The last confirmed sighting of a Baiji in the wild occured in 2007. No Baiji have been seen since 2007, and the species is currently presumed Extinct.
The idea of obtaining animals that are not conventional really appeals to me, such as obtaining an extremely rare, or an extremely expensive species, or obtaining a "special critically endangered species" for our zoo's could be an interesting concept. This feature could add a new dynamic playing experience to the game and to the animal market.
Out of the current animals in the game, the species that best describes these features would be the Giant Panda. In reality there are only 1,864 Giant Panda left in the wild, and you need to pay the Chinese government 1 million USD just to lease a Giant Panda for one year, previously you needed to purchase Giant Panda’s in breeding pairs (minimum 2 million dollars a year). I think obtaining one for your zoos could be slightly different or harder to obtain in the marketplace.
Maybe an achievement could unlock very Critically Endangered species? Maybe the breeding mechanics can be tweaked for some special animals that are extremely rare and don't breed well in captivity. In addition maybe some animals can be REALLY hard to obtain? Or REALLY hard to breed?
Below I listed some cases of Lazarus species, Critically Endangered species, and Extinct in the Wild species that I would love to see in a Conservation DLC. As well as some conservation success stories.
- Lazarus Species: is a group of living animals that are assumed to be extinct, but then later unexpectedly discovered to be alive on the planet
- Extinct in the Wild: are species that only have living members kept in captivity or breeding programs
- Critically Endangered: are species facing an extremely high risk of extinction in the wild
NORTH AMERICA
1 - Cuban Solenodon (Endangered) (Lazarus species) a small mammal endemic to Cuba and the only species in the genus Atopogale. It is unique among mammals because it has modified salivary glands that can produce a toxin that acts as venom. It was originally discovered in 1861, but it was presumed extinct after none were found between 1890 and 1970. However, there were sightings in 1974, 1975, 1999 and 2003. This species could be an exhibit species (currently Planet Zoo has no exhibit mammals). However, less than 40 Cuban Solenodons have ever been caught, because of this its population in the wild is unknown.
2 - Black Footed Ferret (Endangered) (Lazarus species) an endangered mustelid from North America. Declared extinct in 1979, a small population was rediscovered on a farm in Wyoming in 1981. Due to disease and inbreeding the population dropped to a low of 18 individuals, a captive breeding program was introduced in 1987 in order to save the species from extinction. In 1991 reintroductions into the wild began, about 1,200 ferrets are thought to live in the wild currently. In addition this species could utilize the burrowing mechanics implemented in update 1.8. Currently 177th on Metalist.
3 - Cuban Crocodile (Critically Endangered) a freshwater crocodilian endemic to Cuba. Only 3,000 individuals are left in the wild. However they are relatively common in captivity, the Zapata Crocodile Farm in Cuba has 5,000 individuals. Two famous Cuban Crocodiles that used to belong to Fidel Castro currently live at Skansen Aquarium in Sweden. This species could be relatively easy to add to the game by reskinning the Saltwater Crocodile model.
4 - Axolotl (Critically Endangered) a critically endangered amphibian only native to Lake Xochimilco, Mexico. A study in 2013 found only 2 Axolotl in the Lake. Currently it is estimated that there are under 1,000 adult axolotls remaining in the wild, the exact number of individuals is unknown. The species suffers from habitat loss due to the encroachment of Mexico City, and the pollution associated with this, the numbers are currently declining. This species would be a great fit for an aquatic exhibit similar to the terrapin exhibit.
SOUTH AMERICA
5 - Chacoan Peccary (Endangered) (Lazarus species) an endangered Peccary species from South America. Fossils were discovered in 1930, but a living Chacoan Peccary wasn't discovered until 1971. This species could add another South American animal to Planet Zoo. There are only 3,000 Chacoan Peccary on earth, however they are relatively common in zoos.
6 - Bush Dog (Near Threatened) (Lazarus species) a very elusive canid from South America and the only species in the genus Speothos. Fossils were discovered in 1842, but the animal wasn't discovered until 1843, the species was accidentally misidentified and this mistake was not corrected until the 1900s. The Southern Bush Dog subspecies was photographed for the first time in 2016. Due to the elusive nature of Bush Dogs the exact numbers are unknown, but studies estimate anywhere from 10,000-15,000 left in the world. This species could add another South American animal to Planet Zoo. Currently 69th on Metalist.
7 - Monito del Monte (Near Threatened) (Lazarus species) a small arboreal marsupial from South America and the only species in the genus Microbiotheria. It was only known from fossils until 1894 when a living Monito del Monte was finally discovered in Chile. The number of Monito del Monte is unknown in the wild, however they have been kept in captivity. This species could add another South American animal to Planet Zoo and this species could be an exhibit mammal.
8 - Panamanian Golden Frog (Extinct in the Wild) an amphibian endemic to Panama. They were filmed in 2006, for the BBC documentary "Life in Cold Blood". However, that region of Panama was hit by the Chytrid fungus (a fungus responsible for the decline of 501 amphibian species worldwide), and therefore remaining wild frogs were captured to prevent extinction. Subsequent trips to the region have not found any Panamanian Golden Frogs. One of the last wild individuals can be seen in the documentary Life in Cold Blood. There are 1,000 Panamanian Golden Frogs left, all living in captivity. This species could really draw attention to the Chytrid fungus that has been responsible for the worldwide decline of amphibian species, in addition this species could be an exhibit similar to other frog exhibits in the game.
9 - Golden Lion Tamarin (Endangered) a primate endemic to Brazil. In 1969 only 150 Golden Lion Tamarins were thought to be left in the wild. It was declared critically extinct in 1996. Due to breeding programs the number of individuals in the wild is currently 3,200. But the species is facing threats from logging, deforestation, and fragmentation of the Amazon Rainforest, and from illegal poaching and capture for the pet trade. This species can really bring attention to the deforestation the Amazon rainforest is facing. In addition, this species could add another South American animal to Planet Zoo. Currently 29th on Metalist.
AFRICA
10 - Scimitar Horned Oryx (Extinct in the Wild) an ungulate from the Sahara desert of Africa. Declared extinct in the wild in 2000, by then the only remaining Scimitar Oryx's were found in captivity. In 2015 there were 1,750 individuals in breeding programs. The species began reintroductions into the wild in 2016. By 2021 there were 400 individuals in the wild. In addition this species could add another animal to the desert biome. Currently 37th on Metalist.
11 - Addax (Critically Endangered) an ungulate from the Sahara desert of Africa. Less than 500 individuals remain in the wild. However, this species is common in captivity, with over 600 Addax living in captivity. It is currently kept in zoos in Europe, Asia, North America, Africa and Australia. In addition to being a relatively common zoo animal that highlights the need for conservation, it could also add another animal to the desert biome. Currently 48th on Metalist.
12 - Indri (Critically Endangered) the largest lemur species endemic to Madagascar, Africa. Indri are revered in legends by people across Madagascar. The species is critically endangered due to the fragmentation and deforestation occurring in Madagascar. The number of Indri in the wild is unknown, and estimates vary wildly from 1,000-10,000 individuals. However, Indri are not common in zoos (but neither are Proboscis Monkeys and Chinese Pangolins and they are in Planet Zoo) so I'd be happy with this species personally.
13 - Sifaka (Critically Endangered) a species of lemur endemic to Madagascar, Africa. Sifaka lemurs are more commonly kept in captivity than Indri. In addition several species of Sifaka are also critically endangered. Silky Sifaka (Critically Endangered) are an extremely rare Sifaka subspecies. There are estimated to be between 100-1,000 Silky Sifaka left making it one of the most endangered primates on earth. However, there are no Silky Sifakas kept in zoos. Golden Crowned Sifaka (Critically Endangered) a subspecies of Sifaka that wasn't described by science until 1988. The exact population of Golden Crowned Sifaka is unknown. Estimates of Golden Crowned Sifaka vary wildly from 6,000-10,000 individuals, to as many as 18,000. Furthermore, Sifaka were popularized in North America from the popular PBS children's show "Zoboomafoo".
14 - Chapman's Pygmy Chameleon (Critically Endangered) (Lazarus species) one of the smallest lizards on earth and endemic to Malawi, Africa. Discovered in 1992, but not seen again until 2016. Several species of Pygmy Chameleon are critically endangered, deforestation and fragmentation of habitat is a big factor in this. The exact number of Chapman's Pygmy Chameleon's is unknown, it is probably the rarest Chameleon species, and possibly the rarest lizard in the world. A 2014 assessment also found that 36% of the world's chameleon species are threatened with extinction. In addition Planet Zoo could really use a Chameleon species for the exhibits.
15 - Somali Wild Donkey (Critically Endangered) a desert dwelling ungulate from the Horn of Africa. There are fewer than 1,000 individuals left in the wild and less than 200 individuals in captivity. This species would add another equid species to the game (the other species being the Zebra) and it would add another species for the desert biome. However, the name of this animal is A-S-S and I both literally and jokingly think it won't ever be included in the PLanet Zoo because of that silly reason. This species would be relatively easy to add by reskinning the Zebra model. Currently 71st on Metalist.
16 - Drill (Endangered) one of the worlds least known monkey species, they are found in Western Africa, and are closely related to the Mandrill. Very little is known about this species, the first Drill ever photographed in the wild was in 2010. Drill numbers have been declining rapidly due to illegal poaching, the illegal pet trade, and hunting for bushmeat. Due to the elusive nature of this species the population is unknown but presumed to be between 3,000-8,000 individuals. Despite their elusive behavior they are kept in approximately 40 zoo institutions worldwide, the largest captive population are 174 individuals kept at the Drill Rehabilitation and Breeding Centre in Nigeria.
17 - Eastern Black Rhinoceros (Critically Endangered) or South Central Black Rhinoceros (Critically Endangered) are two rhinoceros subspecies native to Africa. There are 3 subspecies of Black Rhinoceros, the Eastern Black Rhinoceros (740 individuals) and the South Central Black Rhinoceros (2,200 individuals) are both Critically Endangered. While the last Western Black Rhinoceros sighted in the wild was 2006, and the last captive Western Black Rhinoceros died in 2011. Adding a Black Rhinoceros to Planet Zoo would be relatively easy by reskinning the White Rhinoceros model. Currently 44th on Metalist.
EUROPE
18 - Wisent or European Bison (Near Threatened, previously Extinct in the Wild) an ungulate and the largest land animal in Europe. In the 19th Century there used to be three living species of Wisent, however the last Caucasian Wisent was killed in 1927, and the last Carpathian Wisent was killed in the mid-1800s. The last wild European Bison was shot in 1921, but captive individuals were successfully reintroduced to reserves in Poland in 1951. There are currently 1,000 wild European Bison living in the Białowieża Forest in Poland-Belarus. In addition this species would be relatively easy to add to the game by reskinning the American Bison model, and could add another European species. Currently 91st on Metalist.
19 - Iberian Lynx (Endangered) a felid from Europe, these lynx are highly dependent on local rabbit population numbers (ie: less rabbits = less lynx). By the year 2002 there were only 94 Iberian Lynx remaining in the wild. By 2021 due to a combination of captive breeding programs, the introduction of rabbits to their territory, and conservation efforts there were 1,111 Iberian Lynx in the wild. This species could add another European species to the game, and would be relatively easy to add by reskinning the European Lynx model. Currently 47th on Metalist.
20 - European Mink (Critically Endangered) a critically endangered mustelid from Europe. Due to a complex amount of factors including, poaching, habitat loss, competition from other predators and human encroachment European Mink have been declining in the wild since the 1800s, and the current population is predicted to decline 80% further. There are currently 30,000 wild European Mink across Europe and Asia with numbers expected to drop. The European Mink EEP conservation program currently has 214 European Mink in captivity. This species would be relatively easy to add by reskinning the Giant Otter model, and would add another European species to the game.
21 - Mediterranean Monk Seal (Endangered) a seal native to the Mediterranean Sea. In 1997 there was a massive die-off event where 200 Mediterranean Monk Seals, or ⅔ of the entire population died for unknown reasons off the coast of the Sahrawi Arab Republic, Africa in the Atlantic Ocean. In 2015 the species threat level was reduced from critically endangered to endangered. Currently, there are less than 700 Mediterranean Monk Seals in the wild, and these isolated populations are scattered and unable to breed with each other. There are no Mediterranean Monk Seals in captivity, the species has been kept in captivity in the past but has never given birth in captivity. This species would be relatively easy to add to Planet Zoo by reskinning the Grey Seal model.
ASIA
22 - Domestic Dromedary Camel (Common, Domesticated) an ungulate from Africa and Western Asia. The wild Dromedary was domesticated around 4,000 years ago, but it went extinct 2,000 years ago. The current Dromedary populations living in the wild are domesticated Dromedary Camels. Domestic populations became feralized after escaping captivity and began reproducing in the wild. The largest population of domestic Dromedary in the wild are in Australia, the amount of Dromedary in Australia is estimated at 1 million individuals. This species would add another species to the desert biome and would be a great species in Planet Zoo to focus on invasive species (since they are from Africa originally and the largest population is in Australia). Currently 26th on Metalist.
23 - Przewalski's Horse (Endangered, previously Extinct in the Wild) an endangered equid from the steppes of Asia. In 1969 the last wild Przewalski's horse, a single stallion, was discovered in the Gobi Desert. By World War II only two zoos on earth had Przewalski's Horses in captivity, war torn Munich, Germany and war torn Prague, Czechia. By the late 1950s only 12 Przewalski's horses remained on Earth. In 1979 to avoid inbreeding, a concerted program of population management to maximize genetic diversity began, and by 1990's there were over 1,500 individuals. As of 2020 there were 1,200 individuals living in the wild or nature reserves, and 760 individuals in zoos (a small population of 100 individuals lives in the radiated Chernobyl Exclusion Zone in Ukraine-Belarus, Europe). In addition this species could add another equid species to the game (the other being the zebra) and could add another species from Northern Asia. This species would be relatively easy to add by reskinning the Zebra model. Currently 3rd on Metalist.
24 - Amur Leopard (Critically Endangered) a highly endangered leopard species from East Asia. The Amur Leopard might be the rarest felid species in the world. In 2007 there was estimated to be only 19-27 Amur Leopards living in the wild. But by 2015 that number had almost doubled to 57 individuals. And by 2021 there were 110 individual Amur Leopards living in the wild. In addition there were 173 Amur Leopards in captivity as of 2011. This species would be relatively easy to add to Planet Zoo by reskinning the Snow Leopard model, and could finally add a true leopard species to Planet Zoo. Currently 2nd on Metalist.
25 - François’ Langur (Critically Endangered) or Delacour's Langur (Critically Endangered) two monkey species that are native to Southeast Asia. In 1983 there was estimated to be between 4,000-5,000 François’ Langur left in the wild. Currently the exact population size is unknown, there are estimated to be between 1,900-2,150 individuals remaining in the wild. There are 60 François’ Langur in North American zoos. Delacour's Langur is endemic to Vietnam, As of 2010, less than 250 Delacour’s Langur were believed to remain in the wild, with 19 more individuals in captivity. Plans to reintroduce Delacour’s Langur to an isolated UNESCO heritage site in Trang An, Vietnam began in 2017. As of 2021 there are 300 individuals remaining. This species could add another monkey from Asia to Planet Zoo. François' Langur is currently 151st on Metalist.
26 - South China Tiger (Critically Endangered, probably Extinct in the Wild) a tiger subspecies endemic to Southern China. The South China Tiger might be extinct in the wild, in 2007 there was a photograph taken of a supposed South China Tiger, however scientists have since debunked this photograph as fake. No South China Tiger has been reliably sighted in the wild since the 1970s. Currently 150 South China Tigers exist in zoos. Although any Critically Endangered tiger subspecies (Malayan Tiger 120 individuals in wild; Indochinese Tiger 252 individuals in wild, Sumatran Tiger 679 individuals in wild) could be relatively easy to add to the game by reskinning the Bengal or Siberian tiger models and it could add another species to Northern Asia. Sumatran Tiger currently 171st on Metalist.
27 - Javan Rhinoceros (Critically Endangered) an Asian rhinoceros subspecies, once the most widespread now only found on the island of Java, Indonesia. Possibly the rarest mammal on Earth, only 74 individuals exist, the Javan Rhinoceros is poached for their horns which can get up to $30,000 USD per kg. Javan Rhinoceros are notoriously difficult to keep alive in captivity (the entire point of Planet Zoo) therefore a better option might be the Sumatran Rhinoceros. Sumatran Rhinoceros (Critically Endangered) is the smallest Rhinoceros species. Similar to the Javan Rhinoceros, the Sumatran Rhinoceros was once widespread across Asia, but in 2019 the last Sumatran Rhinoceros in Malaysia died, officially extirpating this species from mainland Asia. Presently Sumatran Rhinoceros are only found on the islands of Sumatra, Indonesia and recently in 2016 Sumatran Rhinoceros were discovered on the island of Borneo, Indonesia. Fewer than 80 individuals are left in the wild, and the numbers could be as low as 30 individuals left. However, an official study to determine the exact population numbers is currently underway. Sumatran Rhinoceros have been kept in zoos in the United States and Europe most notably at the Cincinnati Zoo, currently there are 7 Sumatran Rhinoceros' in captivity all at the Sumatran Rhino Sanctuary in Indonesia. Sumatran Rhinoceros is currently 83rd on Metalist.
28 - Père David's Deer (Extinct in the Wild) an ungulate from China. By the 1800s the only Père David's Deer on earth belonged to the emperor of China and were found only in the Nanyuan Royal Hunting Garden, near Beijing. A flood in 1895 led to several deer either dying or escaping and fewer than 30 individuals remained. In 1900 German troops invaded and occupied Beijing, the remaining deer were killed and eaten by troops extirpating the population from China. However, several deer had been sent to zoo's in Europe making the species Extinct in the Wild, and so a breeding population was formed. There are presently over 5,000 Père David's Deers living in captivity, and a further 950 reintroduced to China. This species would be relatively easy to add by reskinning the Fallow Deer model. Currently 76th on Metalist.
29 - Eastern Black Crested Gibbon (Critically Endangered) or Hainan Black Crested Gibbon (Critically Endangered) two gibbon subspecies from Southeast Asia. The Hainan Gibbon is only found only the island of Hainan in China. In the 1950s 2,000 gibbons were in the wild. By 2003 the number had dropped to 13. A 2014 study found 22 gibbons remaining in the wild, but split between fragmented groups making the Hainan Gibbon the rarest primate on earth. Eastern Black Crested Gibbons were not seen in the wild from the 1960s-2000s and presumed extinct, until a small population were rediscovered in Vietnam in 2002. In 2005 there were between 35-37 individuals remaining in the wild in Vietnam. But in 2006 a small population of Eastern Black Crested Gibbons were found in Guangxi, China.
30 - Tonkin Snub Nosed Monkey (Critically Endangered, Lazarus species) a primate species found in East and Southeast Asia, these species are easily identified by their "snub" noses. The species was presumed to be extinct until a population was rediscovered in 1989. By 2002 there were 60 individuals documented. Currently between 160-250 individuals remain in the wild. Snub Nosed Monkeys are unique among primates for being found at very high elevations, and Tonkin Snub Nosed Monkeys can be found at elevations as high as 1,200m (~4,000 ft).
31 - Saiga Antelope (Critically Endangered) an ungulate from Northern Asia and European regions of Russia and Kazakhstan. Similar to Javan Rhinoceros, Saiga Antelope are also poached for their horns. Between 1980 and 2014 several mass die-off events took place where tens of thousands (and in some cases hundreds of thousands) of Saiga Antelopes suddenly died. In 2015 an unusually large event occurred where 120,000 Saiga Antelope died (the entire population worldwide was estimated to be 250,000) meaning approximately half of the Saiga Antelope on Earth died in the year 2015. The exact cause of deaths is unknown, but presumed to be an unidentified disease. This species could add another species to the game from Northern Asia and add another European species. Currently 41st on Metalist.
32 - Saola (Critically Endangered) an extremely rare, elusive ungulate endemic to Vietnam. First discovered in 1992, it was first photographed in 1993. It is so rare it has been nicknamed the "Asian Unicorn" and has only been documented in the wild 4 times since. A saola was photographed in 1998, 1999, and most recently in 2013, while a Saola was caught by local villagers in 2010 (and subsequently died). The true number of wild Saola is unknown, but there is estimated to be a couple hundred left in the wild. Currently 193rd on Metalist.
33 - Chinese Alligator or Yangtze Alligator (Critically Endangered) a freshwater Alligator endemic to China. It is considered the most endangered crocodilian on earth. In 2018 there was estimated to be 300 Chinese Alligators remaining in the wild. However, as of 2016 over 20,000 Chinese Alligators were kept in captivity, making it a relatively common zoo animal for a Critically Endangered species. This species could be relatively easy to add to Planet Zoo by reskinning the American Alligator model, in addition there are only two Alligator species on earth and Planet Zoo already added the other species in the North America DLC.
34 - Yangtze Giant Softshell Turtle (Critically Endangered) a freshwater turtle endemic to China. It is the largest freshwater turtle species at 100 cm long and over 220 lbs (100kg). In the year 2018 two wild turtles were discovered, more recently in 2021 a female Yangtze Giant Softshell Turtle was discovered in Vietnam. The Yangtze Giant Softshell Turtle has been kept in captivity, currently there are 6 individuals left (1 in China, 5 in Vietnam). This species could be a habitat reptile in Planet Zoo.
35 - Chinese Giant Salamander (Critically Endangered) a giant salamander endemic to China. The South Chinese Giant Salamander (Critically Endangered, possibly Extinct) subspecies is possibly extinct in the wild, while the Chinese Giant Salamander subspecies has approximately 50,000 individuals left in the wild. There are over 2 million Chinese Giant Salamanders in breeding programs and zoos. Zoos in the UK, Germany, Czechia, Netherlands, USA and Japan have held Chinese Giant Salamanders in captivity outside of zoos China. This species could be the first habitat amphibian in Planet Zoo. Currently 84th on Metalist.
OCEANIA
36 - Tasmanian Devil (Endangered) a carnivorous marsupial endemic to Tasmania, Australia and the second largest carnivore in Australia. There have been major declines in Tasmanian Devil populations historically, with major epidemics in 1909 and the 1950s. And in 1996 an epidemic of Devil Facial Tumor Disease caused the population to decline up to 80%. At the same time in the mid-1990s approximately 10,000 Tasmanian Devils were being culled each year. As of 2008 there are only 10,000-15,000 Tasmanian Devils left in the wild. In addition this species could utilize the burrowing mechanics implemented in update 1.8. Currently 4th on Metalist.
37 - Northern Hairy Nosed Wombat (Critically Endangered) a terrestrial marsupial only found in the Epping Forest National Park, Australia. The park was established with the sole purpose of protecting the 300 remaining wombat individuals, which are only found in a 3 km square (~1.2mi square) area of the park. This species could add another animal from Oceania/Australia to Planet Zoo and utilize the new burrowing mechanics introduced in update 1.8.
38 - Numbat (Endangered) a marsupial native to Australia. The Numbat used to range across Southern Australia, however they have been extirpated from 99% of their former range. Currently 1,000 Numbat individuals live in the wild in fragmented populations unable to breed with each other. This species could add another animal from Oceania/Australia to Planet Zoo. In addition this species could utilize the burrowing mechanics implemented in update 1.8. Currently 140th on Metalist.
39 - Crested Gecko (Vulnerable) (Lazarus species) a gecko endemic to the island of New Caledonia in the South Pacific. The gecko was first described by science in 1866. The gecko was thought to be extinct for about 100 years until it was rediscovered on the Isle of Pines, New Caledonia in 1994. The Crested Gecko faces threats from the illegal pet trade, however exportation of lizards from New Caledonia is currently prohibited. Despite this the Crested Gecko has become one of the most popular reptiles to keep as a pet globally. Due to the pet trade the Crested Gecko is no longer at risk of extinction. This species could add another animal from Oceania to Planet Zoo, and another exhibit animal.
BIRDS
40 - California Condor (Critically Endangered) a large bird of prey native to the United States. They can grow up to 140cm (1.4m) long, weigh over 30 lb (~14kg), and have wingspans over 300 cm (3m) (~10ft). In 1987 the last remaining 27 individuals were caught in California and placed into breeding programs. 1991 marked the first reintroduction of California Condors into the wild. By 2021 there were 504 California Condors left on earth.
41 - Hawaiian Goose or Nēnē (Near Threatened, previously Extinct in the Wild) the rarest goose species on earth. This goose is endemic to Hawaii, in the South Pacific. Due to hunting and the introduction of invasive predators the Nene almost went extinct and by 1952 there were only 30 Nene left. However, it was successfully bred by conservationists, and by 2004 there were 800 wild Nene and 1,000 more in zoos. This species could add another animal from Oceania to Planet Zoo.
42 - Hawaiian Crow or ʻalalā (Extinct in the Wild) the most endangered corvid in the world, they were endemic to Hawaii in the South Pacific. In 1994 there were only 31 Hawaiian Crows left on earth (19 wild individuals and 12 in captivity). The last two wild Hawaiian Crows died in 2002. As of 2014 there were only 115 individuals left. In 2016, 30 Hawaiian Crow were reintroduced into the wild but sadly the last reintroduced crow died in 2020, thus the Hawaiian Crow has gone Extinct in the Wild twice. This species could add another animal from Oceania to Planet Zoo.
43 - Spix's Macaw (Extinct in the Wild) a parrot species endemic to Brazil. In 1987 only 17 Spix's Macaws were known (all captive birds). By 1990 the number had dropped to 15 in captivity and one in the wild, the low point for the species' population. There was a sighting of a wild Spix's Macaw in the year 2000. In 2016 another Spix's Macaw was sighted in the wild, it is unknown if it was a pet that escaped captivity, or if it was the first wild Spix's Macaw seen in 16 years. Currently there are between 60-80 Spix's Macaws on earth in captive breeding programs.
44 - Edward's Pheasant (Critically Endangered) a pheasant endemic to Vietnam. First described in 1896, a subspecies was discovered in 1964 and named the Vietnamese Pheasant (Critically Endangered). These pheasants suffer from deforestation, poaching, and the effects of defoliation of foliage as a result of the Vietnam War. Numbers in the wild for both subspecies are unknown but are assumed to be under 250 individuals combined. They are relatively common in zoos and breeding programs however and 1,000 Edward's/Vietnamese Pheasants may live in captivity. This species would be relatively easy to add to the game by reskinning the Indian Peafowl model.
45 - Philippines Eagle or Monkey Eating Eagle (Critically Endangered) a large eagle endemic to the Philippines. This eagle can measure 102 cm (1.02m) in length, weigh 17.6 lb (8kg), and have a wingspan of 220cm (2.2m) (7 ft 3 inches). 1994 the number of Philippines Eagles was estimated between 180-500 individuals. In 2015 there were estimated to be 600 individuals left in the wild and 36 individuals in breeding programs throughout the Philippines. Around 50 Philippines Eagles have been kept in zoos in Europe, USA and Japan, the last being kept at the Antwerp Zoo, Belgium in 1988. 2021 there are estimated to be 400 breeding pairs of Philippines Eagles left in the wild.
46 - Takahē (Critically Endangered) (Lazarus species) a flightless bird endemic to New Zealand. Fossils were discovered in 1847, but the bird wasn't described by science until 1850. By 1898 no more Takahe could be found in the wild and the bird was presumed to be extinct. 1948 Takahe were rediscovered in an isolated part of the Southern Island, New Zealand. 1982 the population of Takahe was only 118 but thanks to conservation efforts by 2019 the population of Takahe was 418 individuals. This species could add another animal from Oceania/Australia to Planet Zoo.
47 - Kākāpō (Critically Endangered) (Lazarus species) a flightless parrot endemic to New Zealand. These parrots are nocturnal and can live up to 100 years. Efforts to save the Kakapo started as early as 1891. But by the early 1970s it was unknown if the Kakapo was extinct or alive. Finally Kakapo were located in 1974, and in 1977 several dozen were found on a remote predator free island. 2019 there were 200 Kakapo remaining. This species could add another animal from Oceania/Australia to Planet Zoo. Currently 105th on Metalist.
48 - Night Parrot (unknown, possibly Endangered) (Lazarus species) a nocturnal parrot endemic to the deserts of Australia. The Night Parrot has been shrouded in mystery for decades and is still one of the rarest most elusive birds on the planet. The bird was only known from a few specimens collected in the 1860s and 1870s. There were sightings in 1912, but it was presumed to be extinct until they were sighted again in 1979. There was a possible sighting in 2005, while a carcass of a Night Parrot was found in 2006, and another carcass was found in 2012. Then in 2015 a small population of Night Parrots were finally discovered by researchers. The current number of Night Parrots is unknown but it is presumed to be between 50-250 individuals. This species could add another animal from Oceania/Australia to Planet Zoo.
MARINE (controversial animals for a controversial DLC)
49 - West Indian Ocean Coelacanth (Critically Endangered) (Lazarus species) a lobe finned fish found in the Indian Ocean. The Coelacanth had been known only from fossils and was presumed extinct for 65 million years until its rediscovery in 1938 when a fishing trawler in the Indian Ocean caught a living Coelacanth. The fish had been historically known to local fisherman as "Gombessa", but the Coelacanth was finally identified in 1938 and is perhaps the best known case of a Lazarus species to date, a second Coelacanth was discovered in 1952. The current population of West Indian Ocean Coelacanth is estimated at 370 individuals.
50 - Vaquita (Critically Endangered, or Extinct in the Wild) a small porpoise endemic to the Gulf of California. The Vaquita is the smallest cetacean on earth at only 150 cm (1.5m) long and 95 lb (43 kg). It is arguably the most endangered marine animal and cetacean on earth. In 2007 there were estimated to be only 150 individuals remaining. In the year 2017 two individuals were caught, and one captured Vaquita subsequently died from shock. By 2018 it was estimated there were less than 19 individuals. The current population is unknown. In 2019 researchers reported seeing 6 Vaquita porpoises. However the species is presumed close to extinction and functionally extinct with likely less than 10 individuals remaining.
51 - Yangtze River Dolphin or Baiji (unknown, possibly Extinct) a freshwater dolphin endemic to the Yangtze River, China. By 1997 a study found 13 remaining individuals. The last known living Baiji died in captivity in 2002. A Baiji was sighted in 2004, and a major expedition was launched in 2006, but failed to locate any dolphins in the Yangtze River. The last confirmed sighting of a Baiji in the wild occured in 2007. No Baiji have been seen since 2007, and the species is currently presumed Extinct.
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