News From the Field
Big Horns Trump Smooth Pickup Lines Every Time
July 26, 2012
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.
Michigan State University
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