Some of these TED talks are real interesting. Usually short and to the point. Once in a while I find a real gem because I can understand what's being talked about. I've heard it said that we're nothing more than a dinner plate for the microbial world but they're not just simple little directionless life forms, there's a lot of order to them including communication amongst not only their own but with other microbes as well. This talk also touches on a new era in immunology.....very cool.
https://www.youtube.com/watch?v=KXWurAmtf78
https://www.youtube.com/watch?v=KXWurAmtf78