I'll do my list by zoos, and I won't count domestic animals.

Barcelona Zoo:
- Brazillian tapir (the male goes up to the fence to be pet by everyone)
- Leopard gecko (animal ambassador)
- North African mastigure (animal ambassador)
- Corn snake (animal ambassador)
Aquarium Barcelona:
- Common stingray (back in the day you could touch them)
Aqualeon (no longer a zoo):
- Military macaw (animal ambassador)
- Eurasian eagle-owl (animal ambassador)
- Boa constrictor (animal ambassador)
- Marginated tortoise (animal ambassador)
Faunia:
- Reeve's muntjac (came up and licked me. :3)
Dingle Oceanworld Aquarium:
- Thornback ray (... Yeah, I got quite a few cuts, but it was worth it)
Aquarium of the Pacific:
- Grey bamboo shark
Singapore Zoo:
- California sea lion (Threw it a frisbee successfully in the show!

)
Singapore Night Safari:
- Maggie the reticulated python (came up as a volunteer during the show)
Wellington Zoo:
- Common brushtail possum (animal ambassador)