A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Black Whales are born white.
41
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
A mole can dig a hole 300 feet deep in one night.
-9
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
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
The Basenji dog is the only dog that is not able to bark.
4