Cows can sleep standing up, but they can only dream lying down.
745
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
When you shave a guinea pig it looks like a little hippo.
19
The oldest recorded elephant lived for 82 years.
213
Sharks have been on the planet longer than trees.
14