Fish that live more than 800 meters below the ocean surface don't have eyes. See more

A group of crows is called a murder. See more

Eels have two hearts. See more

Lobsters have pale blue blood. See more

The mantis shrimp has an extending claw that can punch a hole through a glass jar. See more

Icthyomaniacs are people who are crazy about fish. See more

99% of all animal species that ever lived on Earth are now extinct. See more

Snakes have one lung. See more

Male lions can sleep for up to 20 hours a day. See more

A cat has 32 muscles in each ear. See more

A rat can fall from a five story building without injury. See more

The turkey was wrongly named after what was thought to be it's country of origin. See more

Crocodiles swallow stones to help them dive deeper. See more

Bats always turn left when exiting a cave. See more

Slugs have 4 noses. See more

It is possible to lead a cow upstairs but not downstairs. See more