Did you sleep during biology class? Sexual dimorphism refers to the different morphological characteristics, like outward appearances, between the sexes within a species. Like how male birds are often more colorful than female birds.

[–] comrade19 2 points 5 months ago

Ohh ok. Well thanks for explaining but you didn't have to be mean at the start

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[–] [email protected] 91 points 5 months ago

"Sexual" in this context just means relating to different sexes, it's not saying they're doing it to be sexually appealing (I hope at least)

[–] [email protected] 21 points 5 months ago

It is sexual, because the big noses are supposed to be attractive to the female monkeys. It shows the male is healthy and thus worth it to reproduce with.