Dolphins have names for one another.
18
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Condoms were originally made of animal intestines or linen.
347
A dork is a whale's penis.
327
Sloths take two weeks to digest their food.
243