FILE - In a Feb. 1, 2011 file photo, bedbugs are seen next to the tip of a finger in a container from the lab at the National Pest Management Association, during the National Bed Bug Summit in Washington. Researchers now say that the creepy bugs have a special genetic gift: withstanding incest. It turns out that unlike most creatures, bedbugs are able to inbreed with close relatives and still produce generally healthy offspring. That means that if just a few bedbugs survive in a building after treatment, they repopulate quickly. (AP Photo/Alex Brandon, File)
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