A rhinoceros horn is made of compacted hair.
A cat’s lower jaw cannot move sideways.
Six-year-olds laugh an average of 300 times a day. Adults only laugh 15 to 100 times a day.
Borborygmi is the noise that your stomach makes when you are hungry.
In one day, a full-grown oak tree expels 7 tons of water through its leaves.
It is illegal for a portrait of a living person to appear on U.S. postage stamps.
Hawaii is moving toward Japan at the rate of almost 4 inches per year.
If you had 1 billion dollars and spent 1 thousand dollars a day, it would take you 2,749 years to spend it all