Why cicadas love to land on you, irresistible human

Even on an Air Force base tarmac, a cicada landed on the president's neck.  The spectacular emergence of the Brood X cicadas — with some 1.5 million of the harmless insects emerging per acre in some places — has resulted in cicadas landing on people's shirts, arms, hair, and...beyond. But the bugs have no real interest in people: After 17 years of munching on roots underground, the brood emerges to hastily mate and lay eggs.  So what's going on? When cicadas emerge, they seek out trees, the places where they often congregate, mate, and ultimately lay eggs on the ends of branches. And to a cicada, trees and people have similarities.  Read more...More about Animals, Science, and Animals