Ohio Roller Coaster Riders Get Swarmed by Mayfly Invasion

Ohio amusement park guests are getting more than they bargained for: they're being swarmed by an invasion of mayflies. Millions of mayflies are emerging from lakes and streams across the U.S. The bugs usually make their appearance in May but they did not arrive this year until June. Their single purpose is to mate then return to water and lay their eggs for the next generation. Fortunately, they do not bite. Experts say if it's nighttime, you should turn off the lights and they'll go away.