If you leave a goldfish in a dark room for years, it will turn white. See more

The typical laboratory mouse runs 2.5 miles per night on its treadmill. See more

The starfish is one of the only animals who can turn it's stomach inside-out. See more

A rat can last longer without water than a camel can. See more

Starfish haven't got brains. See more

A rat can last longer without water than a camel. See more

During warm weather hippopotamus's secrete sweat that is pink. This substance not only cools them down but also helps fight infections of the skin. See more

A chameleon's tongue is twice the length of its body. See more

Bees can see ultraviolet light. See more