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 katydid bug hears through holes in its hind legs!
110
Placing alcohol on a scorpion's back will make it go crazy and fatally sting itself.
1k
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217