Dieters who sleep more take off more fat that those who sleep less.
159
By weight, Bone is five times stronger than steel.
417
Sex burns about 360 calories per hour.
861
A hummingbird weighs less than a penny.
1k
A million dollars weighs about a metric ton. Hence the expression "a ton of money."
66
The elephant brain weighs about 6,000g.
274
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99