Why men have nipples

My friend Janet sent me this, which is so coincidental, because we had this conversation at our house just the other day! This piece is short and explained it well - all humans start out female!

As an aside, I wonder why Harrison Ford is wearing a manzier (discussed in the article) - he's not that well-endowed. I wonder if the real purpose is to keep your nipples from showing (maybe nipples aren't considered manly). Hmmm. (I really didn't need to have this thought bouncing around in my head!)

http://www.livescience.com/history/080606-hn-manzeer.html