Scott F. Gilbert, Professor of Biology at Swarthmore College and the University of Helsinki, delivers the Ninth Annual Sinauer Associates Distinguished Scientist Lecture on the new “holobiont” model of biology at the University of Massachusetts-Amherst. The holobiont is the organism in community with its persistent symbionts, as in the Human Microbiome Project. This new view of life on Earth as composed of teams or communities of organisms is replacing the notion of the individual and the Modern Synthesis of the 1940’s. NOTE that I (James MacAllister) periodically send out an email that deals with Margulis-related topics, such as symbiogenetics, the New Symbiotic Biology and Gaia Theory. If you are interested in receiving these emails, send me an email at [email protected] with the word “subscribe” in the subject line and I will add you to the list. You can unsubscribe by a similar email with “unsubscribe” in the subject line.