Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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.
At 90 degrees below zero, your breath will freeze in mid-air and fall to the ground.