Welcome to the microbial world – A very Non-Darwinian world that may have more to do with how one species changes into another than previously understood. See article in Science Daily dating back to last summer for discussion of new research.
http://www.sciencedaily.com/releases/2013/07/130718142417.htm
Today’s Huff Post news explains the importance of microbes see: http://www.huffingtonpost.com/2014/01/22/microbes-human-body-video_n_4536675.html?ncid=edlinkusaolp00000003&ir=Weird+News