One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Only 3% of bird species have penises.
0
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
A group of kittens is called a "kindle".
10