David Quammen joins Nels and Vincent to talk about his new book, A Tangled Tree, including evolutionary trees, Carl Woese, Lynn Margulis, horizontal gene transfer, and much more. Hosts: Nels Elde and Vincent Racaniello Guest: David Quammen Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiEVO David's website David on TWiV 408, Boston Quammens Axel Erlandson's trees reimagined - Gilroy Gardens Music on TWiEVO is performed by Trampled by Turtles Send your evolution questions and comments to twievo@microbe.tv