The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
By weight, Bone is five times stronger than steel.
417
The average sperm cell swims at 8 inches per hour.
4