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[[File:sexualdimorphism.jpg|thumb|right|<center></center>]] | [[File:sexualdimorphism.jpg|thumb|right|<center></center>]] | ||
'''Sexual dimorphism''', | '''Sexual dimorphism''', aka '''severe gonochorism''', refers to different appearance and behavior between the sexes within a species. A species with high sexual dimorphism has very noticeable difference between e.g. males and females. For example, the irish elk had such high sexual dimorphism that it was maladaptive, possibly being a major contributing factor in the extinction of the species. | ||
==Arguments on sexual dimorphism== | ==Arguments on sexual dimorphism== | ||