The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
21
When cats are happy, they may squeeze their eyes shut.
10
Sheep, goats, octopuses, and toads have rectangular pupils.
7
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20