The elephant brain weighs about 6,000g.
274
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Two dogs were among the Titanic survivors.
262
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
The colossal squid has the largest eyes in the world.
4
Dogs have been man's pet for over 14,000 years.
224
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456