Dear Katherine, One of the most ubiquitous postcards available in Florida is that of a manatee nursing her baby.....and it looks like the baby is nipping her in the armpit, so yes, that's where the nipple is, though I've never seen either the real nipple or a representation of one. At a seminar about the gentle creatures a long time ago, I asked some questions that raised a few eyebrows, and no one professed to know the answers, but their guesses were that the calves not only stay with their mamas for up to 2 years, but that they continue to nurse for that long. If any of y'all ever get down this way (Florida's southern Gulf Coast region) in the cooler months, I'll do my best to direct you to places where you can still see them......we had a scary year this winter, losing them to pollution, disease, and boat accidents in numbers far faster than they can ever replace themselves. Sue LaLeike Lehigh Acres, FL