How has the Tree of Life changed since Darwin? How do genes jump from one species to another? Why do we have viral genes in our DNA? Tune into this podcast to hear Art and Marty talk with David Quammen about his new book “The Tangled Tree: A Radical New History of Life.” In this podcast, they discuss how recent advances in genetics has changed our way of thinking about evolution and the relatedness of plants, animals, and microbes. They also discuss David's methods to his madness as he chooses the topics for each of his books. David is an award winning science writer and journalist. He has published over 15 books and written numerous articles for National Geographic, Rolling Stone, and the New York Times Book Review.