Summary: Current Biology 19, 404­407, March 10, 2009 ª2009 Elsevier Ltd All rights reserved DOI 10.1016/j.cub.2009.01.045
Report
Sperm Competition Favors
Harmful Males in Seed Beetles
Cosima Hotzy1 and Go¨ran Arnqvist1,*
1Evolutionary Biology Centre
Department of Ecology and Evolution
Animal Ecology
Uppsala University
Norbyva¨ gen 18D
SE-752 36 Uppsala
Sweden
Summary
One of the most enigmatic observations in evolutionary
biology is the evolution of morphological or physiological
traits in one sex that physically injure members of the other
sex [1­3]. Such traits occur in a wide range of taxa [3] and
range from toxic ejaculate substances [4­6] to genital or
external spines that wound females during copulation [7­
11]. Current hypotheses for the adaptive evolution of such

Source: Arnqvist, Göran - Department of Animal Ecology, Uppsala Universitet

Collections: Environmental Sciences and Ecology