Sexual dimorphism  

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"It is strongly to be expected on evolutionary grounds that, where the sexes differ, it should be the males that advertise and the females that are drab. Modern western man is undoubtedly exceptional in this respect." --The Selfish Gene

This page Sexual dimorphism is part of the gender series.Illustration: Toulouse-Lautrec wearing Jane Avril's Feathered Hat and Boa (ca. 1892), photo Maurice Guibert.
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This page Sexual dimorphism is part of the gender series.
Illustration: Toulouse-Lautrec wearing Jane Avril's Feathered Hat and Boa (ca. 1892), photo Maurice Guibert.

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Kunstformen der Natur (1904) by Ernst Haeckel
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Kunstformen der Natur (1904) by Ernst Haeckel

Sexual dimorphism is the systematic difference in form between individuals of different sex in the same species. Examples include size, color, and the presence or absence of parts of the body used in courtship displays or fights, such as ornamental feathers, horns, antlers or tusks.

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Unless indicated otherwise, the text in this article is either based on Wikipedia article "Sexual dimorphism" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.

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