The pea aphid insect explodes itself thereby sacrificing its life to protect its relatives from predators.
3
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
Mosquitoes don't just bite you, they also pee on you.
11
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Flies are deaf.
379