Noun
Difference of form between members of the same species, as when a plant has two kinds of flowers, both hermaphrodite (as in the partridge berry), or when there are two forms of one or both sexes of the same species of butterfly.
Crystallization in two independent forms of the same chemical compound, as of calcium carbonate as calcite and aragonite.
Source: Webster's dictionaryAlthough the exact function of the oSDN is not fully known, its volume, length, and cell number seem to correlate with sexual orientation, and a dimorphism in its volume and of cells could bias the processing cues involved in partner selection. Source: Internet
Falcatus was a Carboniferous shark, with a high degree of sexual dimorphism. Source: Internet
Dental morphology also supports sexual dimorphism, with highly sexually dimorphic marsupials, such as the grey kangaroo, having different tooth sizes between males and females, but both sexes having the same dental morphology. Source: Internet
Despite a correlation between size dimorphism and the degree of polygyny, some evidence suggests that size differences between the sexes originated due to ecological differences and prior to the development of polygyny. Source: Internet
Almost all species have female-biased sexual dimorphism, with the females being larger than the males, citation citation although those physical differences are generally small; one exception is Dall's porpoise. Source: Internet
Colour of forelocks Some primitive cattle breeds display similar coat colours to the aurochs, including the black colour in bulls with a light eel stripe, a pale mouth, and similar sexual dimorphism in colour. Source: Internet