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
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Tigers, leopards, and jaguars love "Calvin Klein's Obsession for Men". The scent is used to attract animals to cameras in the wilderness, and was even a turn on for one pair of Jaguars who were subject to it.
17
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132