The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The elephant brain weighs about 6,000g.
274
Dogs have been man's pet for over 14,000 years.
224
Cats sleep for 70% of their lives.
8
Bats sleep 18-20 hours per day.
5
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11