The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Cats sleep for 70% of their lives.
8
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Parrot parents "name" their children with a signature call.
112