By Esther Inglis-Arkell

People in swamps occasionally see mysterious lights in the forest, dubbed “will-o-the-wisps.” They’ve been attributed to spirits or aliens, but scientists say they are probably the product of resourceful microorganisms.

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Source:: http://feeds.gawker.com/~r/gizmodo/full/~3/F92SHHjjJaA/microorganisms-burp-fire-at-you-to-make-will-o-the-wisp-1743702107