The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23