After 17 years of chilling underground, billions of red-eyed cicadas have burst onto the scene like nature’s own flash mob. But this isn’t just a regular bug reunion — some of these critters are infected with a wild fungus called Massospora cicadina. This parasitic party crasher turns cicadas into hyperactive, sex-obsessed zombies. The fungus consumes their insides, replaces their butts with a chalky plug of spores, and then cranks their mating drive to 11. Infected males even mimic female signals to lure in more victims, spreading the fungus like a scandalous STD.

Some of these critters are infected with a wild fungus which turns them into hyper active, sex hunger bugs. Pics/iStock