From the base game of Zoo Tycoon 2, I have seen:
- African Elephant
- Lion
- American Beaver
- Black Rhinoceros
- Cheetah
- Chimpanzee
- Dromedary Camel
- Moose
- Emperor Penguin
- Grant's Zebra
- Greater Flamingo
- Grizzly Bear
- Hippopotamus
- Indian Peafowl
- Jaguar
- Nile Crocodile
- Okapi
- Polar Bear
- Red Kangaroo
- Red Panda
- Reticulated Giraffe
- Ring-Tailed Lemur
- Snow Leopard
- Southern Ostrich
- Thompson's Gazelle
- Addax
- Asian Elephant
- African Leopard (Named black leopard in-game)
From the endangered species expansion, I have seen:
- African Wild Dog
- American Bison
- Baird's Tapir
- Black Crested Gibbon
- Bornean Orangutan
- Caribou
- Fennec Fox
- Florida Panther
- Galapagos Tortoise
- Gray Wolf
- Koala
- Komodo Dragon
- Markhor
- Przewalski's Wild Horse
- Lynx
- Spectacled Bear
- Wolverine
From the African Adventure expansion, I have seen:
- Aardvark
- African Spurred Tortoise
- Blue Wildebeest
- Bongo
- Warthog
- Mandrill
- Masai Giraffe
- Meerkat
- Pygmy Hippopotamus
- White Rhinoceros
From the Marine Mania Expansion, I have seen:
- Beluga Whale
- Blacktip Reef Shark
- California Sea Lion
- Common Bottlenose Dolphin
- Green Sea Turtle
- Killer Whale
- Pacific Walrus
- Scalloped Hammerhead Shark
- Southern Rockhopper Penguin
- Southern Sea Otter
- West Indian Manatee
The only animal I am unsure whether I have seen is the Bengal tiger. I have seen other species of tiger, but this one I don't know about