The average person's skin weighs twice as much as their brain.
131
Sex burns about 360 calories per hour.
860
You burn 26 calories in a one minute kiss.
605
The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
Most elephants weigh less than a blue whale's tongue.
442
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The cat brain weighs about 30g.
167
By weight, Bone is five times stronger than steel.
417