When cats are happy, they may squeeze their eyes shut.
10
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
The oldest creature ever found was Ming the clam at an admirable 507 years old.
16