Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Jellyfish as a species are actually older than dinosaurs and sharks.
383
A lion in the wild usually makes no more than twenty kills a year.
186
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
The oldest recorded elephant lived for 82 years.
213
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12