You burn more calories sleeping than you do watching television.
348
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
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
One human hair can support 3 ounces.
191
Most elephants weigh less than a blue whale's tongue.
442
A hummingbird weighs less than a penny.
1k
The average person's skin weighs twice as much as their brain.
131
By weight, Bone is five times stronger than steel.
417