When cats are happy, they may squeeze their eyes shut.
10
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13