Two-thirds of the world's executions occur in China. See more

Intelligent people have more zinc and copper in their hair. See more

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

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

Icthyomaniacs are people who are crazy about fish. See more

On average, Americans spend about 6 months of their lives waiting in front of traffic lights. See more

Plants that are not cared for will cry for help, a thirsty plant will make a high-pitched sound that is too high for us to hear. See more

Banging your head against a wall uses 150 calories an hour. See more

Former enemies, America and Russia now have a great deal in common - they both lead the world in locking people up. See more