Master Naturalists like to think that we have a pretty good understanding of the environment and the interrelationships of natural life, but you probably have no idea of the complexity of life in your own belly button.
Are you aware? REALLY aware?? Do you want to be?!?!? For those bold enough to go where bacteria have gone before, go to http://www.wildlifeofyourbody.org/.
In the words of the authors of the Belly Button Biodiversity Project, "Lady Gaga may live the wild life, but she also hosts it." For a head to toe assessment of what's growing on your body (or your spouse/friends/kids/grandparents) go to The top 10 life-forms living on Lady Gaga (and you).
...and remember, this was Bob Ranney's idea!