It works even better when you use characters from the same movie. His nose is even rosy.

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.

"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)

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.

You know what they say about men with big noses...