Albert Einstein's parents were worried he was mentally slow, because it took him a long time to learn how to speak. See more

A chicken who just lost its head can run the length of a football field before dropping dead. See more

Women blink nearly twice as much as men. See more

The ant can lift 50 times its own weight. See more

If a surgeon in Ancient Egypt lost a patient while performing an operation, his hands were cut off. See more

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

Humans, bonobo monkeys, and dolphins are the only species that have sex for pleasure. See more

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

All the chemicals in the human body have a combined value of approximately £4.00. See more