Sexual selection in prehistoric animals: Detection and implications

R.J. Knell, D. Naish, Joseph Tomkins, D.W.E. Hone

    Research output: Contribution to journalArticle

    43 Citations (Scopus)

    Abstract

    Many fossil animals bear traits such as crests or horns that probably functioned as sexually selected signals or weapons. Interpretations of these structures as functioning in mate choice or intrasexual contests are often controversial, with interpretations based on biomechanics or physiology being favoured by many. Although testing hypotheses based on sexual selection can be difficult, especially given that there is no single, reliable means of recognising sexual selection, we argue that it is not impossible; indeed, there are now several cases where sexual selection is strongly supported. In other cases, a careful study of features such as sexual dimorphism, ontogeny, and allometry, coupled with testing of alternative hypotheses, will be necessary to distinguish between possible explanations for exaggerated features. © 2012 Elsevier Ltd.
    Original languageEnglish
    Pages (from-to)38-47
    JournalTrends in Ecology and Evolution
    Volume28
    Issue number1
    DOIs
    Publication statusPublished - 2013

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