Cicadas can hibernate for an immaculate 17 years! Fact 55

Cicadas are insects, best known for the sounds made by male cicadas. The males make this sound by flexing their tymbals, which are drum-like organs found in their abdomens. Small muscles rapidly pull the tymbals in and out of shape — like a child's click-toy. The sound is intensified by the cicada's mostly hollow abdomen. Female cicadas also make a sound by flicking their wings, but it isn't the same as the song cicadas are known for.

After the long 2 to 17 years, cicadas emerge from the ground as nymphs. Nymphs climb the nearest available tree, and begin to shed their nymph exoskeleton. Free of their old skin, their wings will inflate with fluid and their new skin can harden. Once their new wings and body are ready, they can begin their brief adult life.