Add Yahoo as a preferred source to see more of our stories on Google. Over the past few weeks, Brood XIII 17-year cicadas have emerged in parts of southern Wisconsin and the Midwest for the first time ...

You're on vacation, lying in the shade of a pine tree, and a familiar sound fills the air: chirp-chirp-chirp-chirp... That constant, piercing, sometimes hypnotic noise is the sound of cicadas. But how ...