Obsessive nose picking is called Rhinotillexomania.
101
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Only humans shed emotional tears.
331
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Human hair and fingernails continue to grow after death.
7
Gorillas can catch human colds and other illnesses.
205
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Every human spent about half an hour as a single cell.
144