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
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 ancestor of all domestic cats is the African Wild Cat which still exists today.
12
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Moths are unable to fly during an earthquake.
328