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
Dogs sometimes fake being sick to get attention.
26
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Cows can sleep standing up, but they can only dream lying down.
745
When you shave a guinea pig it looks like a little hippo.
19
A group of kittens is called a "kindle".
10