One human hair can support 3 ounces.
191
The elephant brain weighs about 6,000g.
274
You burn 26 calories in a one minute kiss.
605
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
Fidgeting can burn about 350 calories a day.
201