The largest earthworm on record was found in South Africa and measured 22 feet.
151
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
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
In 1949, an official boxing match between a bear and a man was held. The bear won.
41
Condoms were originally made of animal intestines or linen.
347
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