Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Cats and dogs can hear ultrasound.
350
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
Parrot parents "name" their children with a signature call.
112
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
Jellyfish as a species are actually older than dinosaurs and sharks.
383