The periodical cicada is a unique insect known for its long life cycle, which can last 13 or 17 years, depending on the species. These cicadas emerge in large numbers during late spring, creating a distinctive buzzing sound as males call to attract females. They are primarily found in the eastern United States. After emerging, periodical cicadas spend a few weeks mating before laying eggs in tree branches. The nymphs then fall to the ground and burrow into the soil, where they will remain for years, feeding on plant roots until it is time to emerge again. Their synchronized life cycles are a fascinating aspect of their biology.