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When antlers grew too large

The Irish elk evolved antlers reaching 3 meters across and weighing 40 kilograms—so big that the animals ran into nutritional problems.

References:

Moen, R.A., J. Pastor, and Y. Cohen. 1999. Antler growth and extinction of Irish elk. Evolutionary Ecology Research 1(February):235.

Sources:

Ron A. Moen
University of Minnesota-Duluth
Center for Water and Environment
Natural Resources Research Institute
5013 Miller Trunk Highway
Duluth, MN 55811

From Science News, Vol. 155, No. 10, March 6, 1999, p. 159. Copyright © 1999, Science Service.

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