The pea aphid insect explodes itself thereby sacrificing its life to protect its relatives from predators.
3
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
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
Flies are deaf.
379
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Mosquitoes don't just bite you, they also pee on you.
11