It’s cicada-mania! For the first time in more than two centuries, two broods of North American cicadas will emerge from the Earth at the same time. One hasn’t been up in 13 years and the other has been underground for 17 years, and they are both different from the typical cicadas we hear every summer. “Something Offbeat” host Mike Rogers caught up with Tom Tiddens of the Chicago Botanic Garden to learn more about the broods and explore some of the mystery around cicadas. Mysteries like what they are doing for all those years underground.