Sex burns about 360 calories per hour.
860
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
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
By weight, Bone is five times stronger than steel.
417
Most elephants weigh less than a blue whale's tongue.
442
The elephant brain weighs about 6,000g.
274
You burn more calories sleeping than you do watching television.
348