SYSK Selects: Why do men have nipples?

In this classic episode from 2013, Chuck and Josh dive into the surprisingly fascinating biology behind why men have nipples, tracing it back to our shared development in the womb where both sexes start with identical mammary tissue and plumbing before sexual differences kick in. They explore the wild implications of this fact, including how men can actually lactate under the right hormonal conditions, share stories of fathers who've breastfed their children, and even touch on the surprising prevalence of extra nipples in newborns. It's a perfect example of how a simple, almost silly question leads to some genuinely mind-bending insights about human evolution and biology.