Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The human brain is more active during sleep than during the day.
28
Early American humans hunted car-size armadillos and used their shells for houses.
12
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Babies crawl an average of 200m a day.
212
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