The creatures that live inside you

Ecology is inside you. Since my undergraduate studies, I've always been interested in ecological phenomena that are close to people, something that everyone can experience without having to make long expensive journeys to the Okavango Delta or the Galapagos Islands. For some years now, our own inner ecosystem has been the focus of research for some microbiologists. Ecology is closer than ever. Interestingly, a new study shows that we carry somewhat different ecosystems in our gut.