South of Fall Creek by the edge of the woods, the moths would gather. They were, of course, drawn by light—set out by a researcher working in Cornell University’s old Insectory building. In 1889, the lure came from a kerosene lantern, the pan underneath collecting the samples. In 1919, a researcher set up another light trap, baited by the orangish glow of an early tungsten bulb. A team of biologists used datasets both old and new to discover how flight periods of moths in Ithaca, N.Y., have changed over the past century.
Moths are flying later in the year than a century ago, study finds
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