A man's beard grows fastest when he anticipates sex.
239
Gorillas can catch human colds and other illnesses.
205
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
