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Deer with magnificent antlers are disadvantaged in that they must find more food and expend more energy carrying around these heavy weapons than other deer. Antler growth can leach nutrients from other bones causing seasonal osteoporosis; the benefit is that other animals are deterred by the antlers, reducing the need to engage in conflict. In this title, Emlen (biology, Univ. of Montana; Evolution) compares the selection for large antl...Log In or Sign Up to Read More