Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
You can't tickle yourself.
29
There are about 255 babies born worldwide every minute.
46
Gorillas can catch human colds and other illnesses.
205
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Human hair and fingernails continue to grow after death.
7
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13