Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
35
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
160
The human sigh acts as a physiological reset button.
23
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22