The reindeer is the only mammal that can see UV light.
17
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A cow produces around 200,000 glasses of milk in her lifetime.
373
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10