Costs and the diversification of exaggerated animal structures.

  title={Costs and the diversification of exaggerated animal structures.},
  author={Douglas J Emlen},
  volume={291 5508},
Sexual selection can favor production of extravagant ornaments and weapons in the contest for access to the opposite sex. Existing explanations for the diversity of sexually selected structures focus on reproductive benefits conferred by particular ornament or weapon morphologies. Here, I show that costs of weapon production also may drive patterns of weapon evolution. In beetles, production of horns reduces the size of neighboring morphological structures (antennae, eyes, or wings, depending… CONTINUE READING
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