Ever wonder why areolas, the dark area around the nipple, have little bumps? So have scientists.  And when scientists wonder something, they get to finding out.

Turns out that the bumps might have something to do with helping newborns smell their way towards their mother’s breast milk. New mothers with more bumps started producing milk sooner and their babies gained weight faster. They also found that scent of secretions from these bumps encouraged newborn feeding behaviors like sucking and licking. Bodies are cool!

via newscientist.com