By weight, Bone is five times stronger than steel.
417
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
30
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Mushrooms are more closely related to humans than they are to plants.
47
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18