Mosquitoes don't just bite you, they also pee on you.
11
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
The reindeer is the only mammal that can see UV light.
17
The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
The Basenji dog is the only dog that is not able to bark.
4