I pretended that we haven't received the Arctic and South America packs yet, so these are what I would have done if I got to decide the content of the DLCs myself
1. Australia pack
This pack adds Australian animals to the game. It includes 4 habitats, 1 exhibit, outback themed objects and Australian foliage.
The red kangaroo is this pack's flagship animal. For maximum variety I chose the popular devils and koalas. No wombats because they are relatively similar to koalas, with koalas being the more popular choice. The flamboyant cassowary is here instead of the emu, due to the later addition of the South American rhea that is really similar to the emu.
2. South American rainforest pack
This pack adds South American animals to the game. It is the first of two packs that focus on this region. It includes 4 habitats, 1 exhibit, rainforest themed objects and South American rainforest foliage.
The jaguar is the flagship animal. It is accompanied by the giant anteater, the three toed sloth, and the capybara, which makes for a very varied animal roster that includes very popular additions. The capuchin will be in a later pack, and the llama is left out. The striking emerald tree boa replaces the frog we got.
3. Arctic pack
This pack adds Arctic animals to the game. Includes 4 habitats, 1 exhibit, snow and ice themed objects and arctic and tundra foliage.
The polar bear is the flagship species, accompanied by the caribou, arctic fox instead of the arctic wolf we got, and the musk ox instead of the dall sheep (though I love the dall sheep, it did kind of come out of left field and I feel the musk ox is a much stronger representative of the arctic). The moor frog, while not actually arctic, is one of very few amphibians that lives just below the arctic circle. To complete the pack I figured I'd add them, plus they're kind of pretty and their exhibit would look different from the ones we already have in the game.
4. Europe pack
This pack adds European animals to the game. Includes 4 habitats, 1 exhibit, bavarian themed objects and European foliage.
This pack's flagship animal is the red deer, accompanied by the iconic red fox, the alpine ibex, and the rare Iberian lynx. The peloponnese slow worm makes for a unique exhibit animal.
5. North America pack
This pack adds more North American animals that were left out from the roster. Includes 4 habitats, 1 exhibit, wild west themed objects and North American foliage.
The cougar is the obvious flagship animal for this pack. It is accompanied by the popular moose. Though the arctic wolf was not a popular addition in our arctic pack, I did include the red wolf in this North America pack. Unlike the arctic wolf, the red wolf (canis rufus) is actually distinct from the grey 'timber' wolf (canis lupus) we already have in the game, and the red wolf is critically endangered. I added the white tailed deer for another herbivore, though I suppose it could also have been a beaver. The scary alligator snapping turtle is this pack's exhibit animal.
6. Asia pack
This pack adds more Asian animals that were left out from the base roster. Includes 4 habitats, 1 exhibit, buddhist themed objects and Asian foliage.
The saiga antelope is this pack's flagship animal with its unique appearance and critically endangered status. The clouded leopard and dhole make for the predator species in this pack, and the impressive markhor is the final habitat species. The clouded leopard is much requested, and I think the dhole will be appreciated by many people for being a cute fox-like, dog-like addition that is endangered. The indochinese spitting cobra is the exhibit animal.
7. South American plains pack
This pack adds more South American animals. (not sure about the title, but I didn't like 'South America 1' and 'South America 2') Includes 4 habitats, 1 exhibit, temple themed objects and South American foliage.
The maned wolf is this pack's flagship animal. I chose the guanaco instead of the llama, because the llama is the domesticated version of the wild guanaco. The popular giant armadillo is also in this pack, and the rhea is a typical species to represent South America. I feel these four species, along with the first Soutch American pack up above, sufficiently represent South American wildlife within the constraints of the game (no flying birds, no aquatic animals). The exhibit animal is the strange mata mata turtle.
8. Africa pack
This pack adds some additional African animals that were left out from the base roster. Includes 4 habitats, 1 exhibit, Egyptian themed objects and African foliage.
The meerkat finally makes an appearance in the game with this pack, along with the popular black rhino. The crested porcupine is also here, and the African leopard. The African roster simply isn't complete without the African leopard, even though there is another leopard up ahead. The exhibit animal is the infamous black mamba.
9. Antelope pack
An animal pack without building objects. 6 animals are included instead of 4, because there is no theming, no building objects, no foliage, and no exhibit animal.
This pack will please people who would like more antelope options. It includes several critically endangered species, like the hirola, addax, and scimitar horned oryx. It also adds the strange gerenuk, the cute dik dik and the greater kudu. The flagship animal is probably the scimitar horned oryx, that was extinct in the wild, but reintroduced due to zoo breeding programs.
10. Monkey pack
An animal pack without building objects.
This pack will satisfy the monkey lovers who have been aching for more monkeys, especially new world monkeys. The capuchin is here, along with the golden snub nosed monkey, the golden headed lion tamarin, the uakari, the proboscis monkey and the Mexican howler.