The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
There was a bear called Wojtek who was adopted by Polish soldiers during WW2. It carried ammunition, wrestled with soldiers, and drank beer.
40
Sharks have been on the planet longer than trees.
14
When you shave a guinea pig it looks like a little hippo.
19
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45