During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
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
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
The cat brain weighs about 30g.
167