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
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
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
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Whales and dolphins can't taste anything other than salt.
11