Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
Cats and dogs can hear ultrasound.
350