Your ecosystem is just as complicated as the planet's
Scientists looking at your bacteria population.
And we may be as unique as different planets in some ways:
^The new study builds on a 2008 CU study on hand bacteria indicating that while more than 4,200 species of bacteria resided on 102 human hands, only about five species were shared by all 51 participants. The 2008 study also showed women had a greater diversity of bacteria on their palms than men. ^