This one seems pretty obvious to me. I have never seen fireflies flash together as the synchronized fireflies do in the Smokies, but I would assume it is related to trying to pick up a date. That’s exactly what scientists who are studying the behavior are saying as well. Here’s another great article from the folks over at knoxnews.com. Check it out!
http://www.knoxnews.com/news/2010/jul/12/experts-shed-light-on-synchronized-fireflies/
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