With millions of species of animals roaming the planet, some of them ended up a bit stranger than the rest. Some of them look like they are made up of spare parts, while others have incredibly odd behavior. Some have managed to exist in places that no living creature should exist, while others look like throwbacks to the prehistoric era. Frankly, some of them look more like one of those made-up creatures you thought lived under your bed when you were young. Here are the ten strangest animals that inhabit our planet – don't blame us if one or two of them pop up in your nightmares.

If you enjoy this list, check out our list of the rarest animals in the world.