Sexual Dimorphism
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High Quality Content by WIKIPEDIA articles! Sexual dimorphism is the systematic difference in form between individuals of different sex in the same species. Examples include colour (specifically referred to as sexual dichromatism), size, and the presence or absence of parts of the body used in courtship displays or fights, such as ornamental feathers, horns, antlers or tusks. In many species, including most mammals, the male is larger than the female. In others, such as most insects, spiders, many fish, and certain mammals such as the spotted hyena, the female is larger than the male. Other…mehr

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High Quality Content by WIKIPEDIA articles! Sexual dimorphism is the systematic difference in form between individuals of different sex in the same species. Examples include colour (specifically referred to as sexual dichromatism), size, and the presence or absence of parts of the body used in courtship displays or fights, such as ornamental feathers, horns, antlers or tusks. In many species, including most mammals, the male is larger than the female. In others, such as most insects, spiders, many fish, and certain mammals such as the spotted hyena, the female is larger than the male. Other sex-specific differences include differences in colouration (sexual dichromatism), presence vs. absence of certain body parts (such as horns, antlers, tusks or display feathers), size of the eyes (some insects), possession of stings (various kinds of Hymenoptera), and different thresholds for certain behaviors.