Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
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
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Two dogs were among the Titanic survivors.
262
The cat brain weighs about 30g.
167
Moths are unable to fly during an earthquake.
328