1Andersson M, 1994. Sexual Selection. Princeton, New Jersey: Princeton University Press.
2Berglund A, Bisazza A, Pilastro A, 1996. Armaments and orna?ments: An evolutionary explanation of traits of dual function. Biological Journal ofthe Linnean Society 58: 385-399.
3Berglund A, Rosenqvist Q 2003. Sex role reversal in pipefish. Advances in the Study of Behavior 32: 131-167.
4Bro-Jergensen J, 2007. The intensity of sexual selection predicts weapon size in male bovids. Evolution 61: 1316-1326.
5Bro-Jergensen J, 2008. Dense habitats selecting for small body size: A comparative study on bovids. Oikos 117: 729-737.
6Byers JA, 1999. American pronghorn: Social adaptations and the ghosts of predators past. Chicago, IL: University of Chicago Press.
7Caro TM, Graham CM, Stoner CJ, Flores MM, 2003. Correlates of hom and antler shape in bovids and cervids. Behavioral Ecology and Sociobiology 55: 32-41.
8Clutton-Brock T, 2009. Sexual selection in females. Animal Be?haviour 77: 3-11.
9Eens M, Pinxten R, 2000. Sex-role reversal in vertebrates: Be?havioural and endocrinological accounts. Behavioural Proc?esses 51: 135-147.
10Emlen DJ, 2008. The Evolution of animal weapons. Annual Re?view of Ecology, Evolution, and Systematics 39: 387-413.
