Cows can sleep standing up, but they can only dream lying down.
745
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Snails can live up to 15 years.
84
Frogs sometimes eat enough fireflies that they themselves glow.
71
A crocodile always grows new teeth to replace the old teeth!
15
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