Sharks have been on the planet longer than trees.
14
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
When cats are happy, they may squeeze their eyes shut.
10
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Cat families usually play best in even numbers. Cats and kittens should be acquired in pairs whenever possible!
156