Questions tagged [sexual-diamorphism]

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If evolution is effective, why do men still have nipples? In extreme situations, can fathers lactate?

If evolution is effective, why do men still have nipples? In extreme situations, can fathers lactate and breastfeed their children if the mother is not present to do so?
2
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1answer
352 views

Why do only men have Adam's Apples? What is it? What function does it serve?

Why do only men have Adam's Apples? What is it? I mean, I know what it looks like, but I don't understand what it is made up of and what role it plays in the male body. Is it the larynx?? What ...
8
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1answer
315 views

How much of the difference in brain size is attributable to gender, not physical size?

I've been reading a paper regarding the effects of gender on grey matter and white matter, and one passage not directly related to the final result caught my eye: As expected, intracranial volume ...