When cats are happy, they may squeeze their eyes shut.
10
A dork is a whale's penis.
327
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Two dogs were among the Titanic survivors.
262
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11