The Basenji dog is the only dog that is not able to bark.
4
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
Sharks have been on the planet longer than trees.
14
One in three dog owners say they have talked to their pets on the phone.
427
There are approximately three chickens for every human on Earth.
13
Cats sleep for 70% of their lives.
8