When cats are happy, they may squeeze their eyes shut.
10
A 42-foot sperm whale has about 7 tons of oil in it.
209
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
When you shave a guinea pig it looks like a little hippo.
19
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
Dolphins have names for one another.
18
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6