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
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13