An albatross can sleep while it flies. It apparently dozes while cruising at 25mph.

A magic potion that's thought to arouse sexual desire is known as a 'philter'.

Although BMW made their first car in 1928, they made their first aircraft engine in 1917.

Beaver teeth are so sharp that Native Americans once used them as knife blades.

Cocaine was used as the first local anaesthetic in 1884.

In 1999 the National Geographic Society revised the official height of Mount Everest and added an extra seven feet on its height.