Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Cats sleep for 70% of their lives.
8
Sheep, goats, octopuses, and toads have rectangular pupils.
7
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
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