Biomes Click on an animal to go to that printout. For the top 25 printouts, click here . Insects breathe through holes called spiracles.
Insects hatch from eggs.
There are about a million different types of insects and many more that have not been discovered yet. The biggest insect that ever lived was the ancient dragonfly called Meganeura . This predatory flying insect lived about 250 million years ago and had a wingspan of about 2 feet. Read the definitions, then label the insect diagram. Ant Ants are social insects.