The hairs on a polar bear are not white, but clear. They reflect light, so they appear white. See more
Your skin weighs about 3.2 kg. See more
A rat can last longer without water than a camel can. See more
An octopus can change its shape and color to blend in with its surroundings. See more
An Octopus has 3 hearts. See more
The can opener was invented 48 years after cans were introduced. See more
Starfish haven't got brains. See more
Adolf Hitler had only one testicle. See more
You're born with 300 bones, but when you get to be an adult, you only have 206. See more