Why Do Men Have Nipples?

If men can't nurse, then why do they have nipples? The answer has less to do with evolution and more to do with your personal development as a teeny tiny embryo. Short version: We're all girls -- at least at first. Hank explains!

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Sources:
http://www.scientificamerican.com/article.cfm?id=why-do-men-have-nipples
http://science.howstuffworks.com/life/human-biology/why-men-have-nipples.htm
http://www.scientificamerican.com/article.cfm?id=strange-but-true-males-can-lactate
http://www.livescience.com/32467-why-do-men-have-nipples.html
http://www.huffingtonpost.com/2012/09/04/why-do-men-have-nipples_n_1847460.html
http://ghr.nlm.nih.gov/gene/SRY
http://www.nature.com/news/1999/990805/full/news990805-1.html
http://www.salon.com/1999/06/08/nipples/
http://www.emouseatlas.org/emap/home.html