Most elephants weigh less than a blue whale's tongue.
442
The 1 yen coin can be used as a weight, because it weighs exactly one gram. Also, it can float on water.
19
By weight, Bone is five times stronger than steel.
417
Dieters who sleep more take off more fat that those who sleep less.
159
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The cat brain weighs about 30g.
167
Sex burns about 360 calories per hour.
860