Images and facts about cicadas are presented to researchers.

Every 13 or 17 years, billions of cicadas emerge from the ground to molt, mate and die. Rose Eveleth explains everything you need to know about these noisy insects, admitting that there's still some things we just don't understand. [2:45]

Grasshoppers are found all over the world. Some basic facts about these insects are found here along with some pictures.