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

Owls swallow their prey hole because they have no teeth. After 12 hours they cough up the feathers, bones, and fur in a shape of a football pellet. See more

A shrimp's heart is in its head. See more

The deepest hole ever made in the world (in Texas) is as deep as 20 empire state buildings but only 3 inches wide. See more