It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
When you shave a guinea pig it looks like a little hippo.
19
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