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 a male honey bee climaxes during sex, his testicles explode and then he dies.
27
Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
Dogs sometimes fake being sick to get attention.
26
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
The head of a jellyfish is called the "Bell."
6