The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
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
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
The Basenji dog is the only dog that is not able to bark.
4
There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
10
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2