NETWORKED COMMUNITIES. “Bacteria — which may account for up to half of Earth’s biomass — swap genes without reproducing; with millions residing in a teaspoon of seawater, Woese sees them in terms of networked communities rather than individual cells, and interprets their evolutionary history as driven by the non-linear self-organization that’s now being studied at all biological scales.”
http://www.wired.com/2008/02/complexity-theo/