To "testify" was based on men in the Roman court swearing to a statement made by swearing on their testicles. See more

In Tibet it is considered good manners to stick out your tongue at someone. See more

Those stars and colours you see when you rub your eyes are called phosphenes. See more

The right lung is slightly larger than the left. See more

When baby sharks are born, they swim away from their mothers right away and are on there own. In fact, their mothers might see them as prey. See more

Women blink nearly twice as much as men. See more

A rat can fall from a five story building without injury. See more

The most common name in the world is Mohammed. See more

The catfish has over 27,000 taste buds, that makes the catfish rank #1 for animal having the most taste buds. See more