Dolphins have names for one another.
18
Jellyfish as a species are actually older than dinosaurs and sharks.
383
The largest breed of rabbit is the Flemish Giant.
65
If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
13
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6