While there are a million different types of insects, all have a hard exoskeleton which is segmented into three parts. In fact the word "insect" is derived from the Latin meaning segmented.
The Ultimate Cicada Quiz
That deafening sound is not signaling the end of the world -- its just a swarm of cicadas about to begin partying! What are these noisy creatures and why can't they just be quiet? Take our quiz and find out when and why cicadas insist on being so loud.