The pea aphid insect explodes itself thereby sacrificing its life to protect its relatives from predators.
3
Flies are deaf.
379
When a male honey bee climaxes during sex, his testicles explode and then he dies.
27
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
Moths are unable to fly during an earthquake.
328
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
When dragonflies mate, their tails form a love heart.
22