Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
In Australia, there are spiders big enough to eat snakes.
20
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Bats sleep 18-20 hours per day.
5
Dogs have been man's pet for over 14,000 years.
224
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
In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
22
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8