Now, I can't exactly say that I've seen all of these at Chester (as my memory isn't so good with some of them), but here's some of the past animals I think should/could make a comeback.

- Vicunas/Guanacos
- Greater Rheas
- Emus
- Ostriches
- Scimitar-Horned Oryxes
- California Sea Lions
- Gila Monsters
- Anaconda
- Beaded Lizards
- Western Grey Kangaroos
- Red-Necked Wallabies
- Serval
- Przewalski's Horses
- Prehensile-Tailed Skinks
- Maned Wolf
- Coatis
- Red Titis