Cows can sleep standing up, but they can only dream lying down.
745
Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
271
Dolphins have names for one another.
18
Sheep, goats, octopuses, and toads have rectangular pupils.
7
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
