Okay, here goes (again, 3rd time I've done this now)
This takes into account highly requested animals and what is commonly found in zoos (those two tend to overlap a lot, unsurprisingly). Although there's a few that made it on purely because I like them a lot.
1. California Sea Lion - Surprised this didn't make it into the aquatic pack, probably the most iconic pinniped species for zoos
[Added through the North America Animal Pack]
2. Humboldt Penguin - Any banded penguin is fine, but the name of all things sells me on this species especially
[The African Penguin's inclusion in the Africa Pack removes my need for this species]
3. Asian Small-Clawed Otter - The Giant Otter is a fine inclusion, but it doesn't scream otter to me and is less usable for builds. We also need both more smaller animals and more South-East Asian animals in the game
4. Clouded Leopard - Probably the most requested animal for an Asian pack, coupled with becoming a more well known zoo animal and a smaller cat makes it a worthy inclusion in my eyes
[Added through the Southeast Asia Animal Pack]
5. Malayan Tapir - An easier animal to make but it's unique pattern and continent compared to the Baird's is enough really
[Added through the Southeast Asia Animal Pack]
6. Binturong - My favourite animal of all time, and seemingly a fan-favourite on the forum, the binturong adds carnivoran variety by being a viverrid, and even more arboreal species
[Added through the Southeast Asia Animal Pack]
7. Northern White-Cheeked Gibbon - Any gibbon species is fine but I find this species most appealing as a DLC inclusion (If we were talking base game inclusions, it would be a different story)
8. Przewalski's Wild Horse - Another animal from mainland Asia would be nice, and this species may be pairable with the Bactrian Camel (I'm not too sure though)
9. Dromedary Camel - I think it's distinct enough from the Bactrian to warrant an inclusion, right?
10. Hamadryas Baboon - This or the Olive Baboon. I don't care which, but I'm leaning towards Hamadryas because of my own zoo experiences.
11. Black Rhinoceros - Helps finish off the African Big 5 (which I guess doesn't count in a zoo game, but they're all iconic zoo animals anyways), and the rhino decorations seem to depict this species mainly, and it would be nice to be able to use them accurately
12. African Leopard - This subspecies is the most recognizable to the general public (at least in places where leopards are not present) and once again, helps finish of the Big 5 of Africa. I also have the reasoning that the subspecies covers a wider range of biomes than most other subspecies, which are confined to one or two
13. Meerkat - duh, of course
[Added through the Africa Pack]
14. Alpine Ibex - Seems to be a staple animal of many European zoos (at least Germany and Austria), also ZT1/2 nostalgia might be what gets a lot of people on board with this species as it was in both games from the start
15. Iberian Lynx - Conservational history and the chance to represent the Mediterranean biome makes this small cat get a thumbs up from me
16. Red Deer - Any "generic" deer species could work (Fallow and Axis deer come to mind), but the Red Deer is easily the most requested because of a stag statue in the base game, so uh, ye
17. Wolverine - Helps represent multiple things including, another cold climate animal, reps both NA and EU which are both lacking in species, land-based mustelids (better than a badger imo) and smaller animals (despite it being on the larger end of it's family)
18. Moose - Not really synonymous with zoos in any sense (more of a national park animal), but it's large size and popularity could make it a challenging and rewarding animal to house (which is possible, somehow)
[Added through the North America Animal Pack]
19. American Alligator - Once again, a no duh inclusion. I don't have anything else to say really
[Added through the North America Animal Pack]
20. American Beaver - This ALL depends on if they would be able to program dam building. If not, then uh idk
[Added through the North America Animal Pack]
21. North American Cougar - For some reason every continental pack idea other than Australia gets a cat thrown into the mix (hmmm,)
[Added through the North America Animal Pack]
22. Capybara - Basically, beaver with less work (not really but it's an oversimplification). Very popular as both a candidate for the game and just in general, could be cheap animal that can be paired with numerous other species.
23. Maned Wolf - A unique canid from South America. Literally only makes it onto this list because I like them a lot.
24. Emu - Wow, I haven't listed a bird since animal number 2 (There were so many ground birds I want that didn't make the list unfortunately). This bird is literally on our coat of arms, why the heck was it excluded from the Australia pack???
25. Tasmanian Devil - I don't really know how to explain this pick. I'll just leave it on and hope people agree with me
26. Addax - This critically endangered antelope has become very common in zoos around the globe because of conservation programmes, and it's unique appearance and biome compared to other antelope may tide others over in it's favour
27. Scimitar-Horned Oryx - Same reasons as the Addax, just slightly easier to make. Also, we have an extinct in the wild symbol in game, we might as well use it, and Oryxes as a whole seem to be the poster animals for that status.
28. Fennec Fox - Probably the most plausible fox species for the game, as I know those are highly requested in the community. Also, more desert animals would be greatly appreciated
[Added through the Africa Pack]
29. Fossa - The apex predator of Madagascar poses a unique animal for a zoo's collection and it's been seen added to more zoos in recent years, and is starting to become more recognisable to the public.
30. Black-Handed Spider Monkey - Okay, this one is purely because I love this animal a lot. Specifically the ornate subspecies as it's the one I'm most familiar with (I'm guessing ornate as the zoos never specify subspecies but ornate is the only ssp. resembling the ones I've seen). Although a Howler or a Squirrel Monkey are usually chosen as a second New World Monkey, Spider monkeys are probably my favourite, and I'm saddened by the lack of discussion of members in the Ateles genus.
I also though that I'd do 10 honourable mentions animals, to showcase a few animals that I really want to see, but didn't make the cut (You don't need to list these Goat)
1. Markhor - Purely due to my memories of ZT2 and finding out that this animal was a thing. I was even more surprised to find out that it belongs to the same genus as the ibex earlier on in the list. The sheer amount of differences in the two species make it also worthy of inclusion in my opinion, it just didn't make the main list due to lack of mentions by the community. The Spider monkey was the only animal I told myself was going to make the list purely because I want it so much.
2. Southern White Rhinoceros - Okay, this one would've been number 30 on the main list if I didn't shoehorn the monkey onto the list. But I did do that, so here we are. Probably the most common rhinoceros in captivity as a whole, it should've made the base roster instead of the Indian Rhinoceros. But, Frontier makes really weird decisions and we're kind of stuck with that fact. I guess we can only hope
[Added through the Africa Pack]
3. North Island Brown Kiwi - Yay, another bird! Probably one of the most unique animals in terms of mechanics (maybe even more complicated than the gibbon and beaver if Frontier wants to put in the effort) as they need specialised nocturnal houses to live in. Although, I don't expect that to be a thing Frontier would want to do and they might just make the kiwi a regular animal
4. Ocelot - The smallest cat on my list. It has the same reasoning as the Maned Wolf (which was a bit of a lie, I also saw other people ask for these two but the MW came up more often from what I noticed so it made it on the list proper while the ocelot didn't)
5. Proboscis Monkey - Not a staple zoo animal in the broadest sense of the term, but a really interesting one none the less. The only zoos I've been to outside of Australia, Singapore Zoo houses two troops iirc (one on display, one off) and they are wonderful. It would be nice to have some very arboreal Old World monkeys (Mandrill, Jap Macaque and even the baboon I mentioned are more ground-dwelling in nature) and they can also swim!
[Added through the Southeast Asia Animal Pack]
6. Red-Necked Wallaby/Bennett's Wallaby - I may have a bias towards the Agile Wallaby as I've seen them in the wild, but I can't deny that the Red-Necked Wallaby probably deserves the second macropod slot more as it's found in so many zoos around the world (an astounding 120 according to ZooInstitutes)
7. Blackbuck - Mainly because of ZT1's inclusion of the animal and because it's probably the most recognisable Asian antelope species. Fun Fact: Blackbuck were apparently released into Australia back in the 1900s, but they seem to have all died out iirc (just saying this now, feel free to correct me on any information that I may be wrong on, I can probably take the heat)
8. Spectacled Bear - A noteworthy bear species as it is the closest relative of the now extinct short-faced bears. They would add in some more South American variety because I know we can never get enough of that, right?
9. Little Penguin - Not super noteworthy outside of Australia and New Zealand, the Little Penguin (also called the Fairy Penguin or the Blue Penguin) is the smallest penguin and is noted here just because I like them a lot. Hey, these are the honourable mentions, A.K.A; my hopes and dreams that will be inevitably be crushed by only a year or 2 more of content, so I can put whatever I want here!
sobs
10. Red River Hog - Of all the pig species of the world, the Red River Hog's vibrant colouration and tropical habitat make it an instantly recognisable species. Couple that with it's inclusion in many of the more famous zoos around the world (San Diego, Bronx, Singapore), and you got yourself a pig that deserves an inclusion in the game! Too bad it's outshone by many other African animals atm
Dang, that took like... an hour or so of just sitting and typing. I don't think I'm going to back up my choices anymore, too much effort. I feel bad for whoever decides to read to the end of this, but also grateful to anyone who bothered to read it all
