The inclusion of non-zoo species is often to stimulate interest in these species for players who are not already zoologists.
The important thing I would stress personally is from my short involvement in the video game industry, anything that reuses animation is probably "additional" to anything with new animations. Animation is very intensive and time-consuming even compared to model and texture work, and this is usually budgeted low, so games often reuse these whenever possible.
Exactly my point, Animal-themed Games introduce people to animals that are not well-known to the public, and the Earth's biodiversity.
For my wishlist, the animals that would include the following Animation Rigs:
Masai Giraffe: Animation Rig from the Reticulated Giraffe.
Secretary Bird: It would share Rigs like the Red-crowned Crane and the Flamingos.
Honey Badger: Share European Badger and Wolverine Animation Rigs.
Gerenuk: The Dama Gazelle Animation Rig can be used.
Olive Baboon: Hamadryas Baboon Rig.
Blackbuck: Animation Rigs would be Thomson’s Gazelle, Springbok, and Nile Lechwe.
Nile Crocodile: The Animation Rig used in the Crocodilians in the Game: American Alligator, Saltwater Crocodile, Spectacled Caiman, Cuvier’s Dwarf Caiman, and Indian Gharial.
Onager: Animation Rig used would be Somali Wild Ass or Donkey.
Gelada: Hamadryas Baboom Rig can be used.
Ethiopian Wolf: The Gray Wolf, Arctic Wolf, and Coyote Animation Rigs can be used.
American Black Bear: The Animation rigs used for all the bears in the game would be used mostly for Giant Panda, Formosan Black Bear, Spectacled Bear, Sun Bear, and Sloth Bear.
Mexican Grey Wolf: The Gray Wolf and Arctic Wolf Animation Rigs.
Japanese Serow: Markhor and Alpine Ibex Animation Rigs can be used.
Barbary Macaque: Japanese Macaque Animation Rig.
Iberian Lynx: Eurasian Lynx Animation Rig.
Indian or Indochinese Leopard: Amur Leopard and African Leopard Animation Rigs.
Javan Rhinoceros: Indian Rhino Animation Rig.
Crested Gibbon: White-handed or Lar Gibbon and Siamang Animation Rigs.
Mountain Gorilla: Western Lowland Gorilla Animation Rig.
Sea Otter: It would have unique animations alongside Animation Rigs from Giant Otter and Asian Small-clawed Otter.
Walrus: The California Sea Lion Animation Rig would be used.
Southern Rockhopper Penguin: African Penguin and Little Penguin Animation Rigs would be used.
Emperor Penguin: The King Penguin would be used for animation rig and model reworking.
Muskoxen: The Takin would be used for an animation rig.
Northern Elephant Seal: Combination of Grey Seal and California Sea Lion Animation Rigs used.