Most elephants weigh less than a blue whale's tongue.
442
You burn 26 calories in a one minute kiss.
605
You burn more calories sleeping than you do watching television.
348
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
By weight, Bone is five times stronger than steel.
417
The average person's skin weighs twice as much as their brain.
131
Sex burns about 360 calories per hour.
860
A hummingbird weighs less than a penny.
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