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 dragonflies mate, their tails form a love heart.
22
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
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
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
Moths are unable to fly during an earthquake.
328