Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
Jellyfish as a species are actually older than dinosaurs and sharks.
383
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
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Nicole Kidman is scared of butterflies.
65
The colossal squid has the largest eyes in the world.
4