In terms of "must-haves" rather than "wants" there are only really a few that I think are missing from the game;
- Southern white or eastern black rhinoceros. Preferably the former, but happy with the latter. In general, a rhino from Africa.
- Meerkat. Staple of the zoo-species diet. The small size is not a good excuse to exclude them.
- Siamang or white-cheeked gibbon. The siamang is the most common species found in S. hemisphere zoos.
- Black-handed spider monkey. Another common sight in many zoos.
- Asian small-clawed otter. Goes hand-in-hand with underwater navigation mechanics, but at this point I'd take it even if just swam on the surface.
- California sea lion. This one definitely needs underwater navigation mechanics.
- Southern rockhopper/African/Humboldt penguin. Any three of these would be a welcome addition. Would also accept the king penguin and gentoo penguin.
- Serval and/or caracal. The game is lacking in small cats, and the serval especially has a large presence in zoo collections.
- Hamadryas baboon. Another common zoo animal.
IMO those are the animals that are needed to round out the roster to near-completion.
In terms of animals I desperately want, see all of the above, but also:
- North Island brown kiwi. With the new lighting mechanics in 1.3.0 making a faux nocturnal house will be easy.
- Tuatara (Exhibit Animal). This and the above would be a great token New Zealand inclusion.
- Clouded leopard. One of my favourite animals.
- Diana monkey. They're just beautiful, and endangered.
- Proboscis monkey. Extremely unique in both appearance, behaviour, and biome.
- Emu. No zoo game has given us the emu, and Frontier has missed their opportunity to be the first.
- Tasmanian devil. I had my heart set on this one. They're highly endangered and far more valuable to the biodiversity of the planet than the dingo.
- Sumatran tiger. I know, I know - a "clone animal". "Not another tiger!" you cry. Yes, I'd love this subspecies.
- Malayan sun bear. They could even remove the Himalayan brown bear from the roster if they wanted, or the grizzly, if it meant giving me this.
- Eastern grey kangaroo. Another kangaroo, already? Yes, these sweethearts make great walkthrough animals (along with the aforementioned emu).
- Bennett's wallaby. Another common walkthrough species.
- Blue/yellow-banded/phantasmal/dyeing poison dart frogs (Exhibit Animals). All of them, please.
- Addax,
- Scimitar-horned oryx,
- Common waterbuck,
- Blackbuck,
- Nilgai,
- Saiga,
- Dama gazelle,
- Gerenuk,
- Sitatunga. I have a soft spot for antelope.
- Great white pelican,
- Red-crowned crane,
- Grey-crowned crane,
- Brolga,
- Himalayan monal,
- Golden pheasant,
- Lady Amhearst's pheasant,
- Magpie goose,
- Cape Barren goose,
- Marabou stork,
- Shoebill. These are a few of my favourite (not necessarily flying) birds.
Aside from what I've already mentioned, there are also myriad exhibit animals I could choose.