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News From the Field
Big Horns Trump Smooth Pickup Lines Every Time
July 26, 2012
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Elk and rhinoceros beetles aren't diabetic, but to grow big horns and attract mates it appears that the males are insulin-dependent. Ian Dworkin, a Michigan State University zoologist, was part of a team that for the first time ever, showed why horns--from elk to rhinoceros beetles--and other decorative, mate-attracting structures are sensitive to changes in nutrition. As reported in the current issue of Science, the key ingredient for this growth is insulin.
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Michigan State University
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