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
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
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Drivers kill more deer than hunters do.
660
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2