David Ewing Duncan is an award-winning, best-selling author of books, essays, articles and short stories; and a television, radio and film producer and correspondent. He writes columns for Fortune and for MIT Technology Review, and is the Chief Correspondent for public radio's "Biotech Nation." He writes for the New York Times, Wired, Discover, National Geographic, and many other publications. At UC Berkeley he is the Director of the Center for Life Science Policy and a Visiting Researcher at the Graduate School of Journalism. His books include Experimental Man: What one man's body reveals about his future, your health, and our toxic world (Wiley) and Masterminds: Genius, DNA and the Quest to Rewrite Life (Harper Perennial). He wrote the international bestseller, Calendar: Humanity's Epic Struggle to Determine a True and Accurate Year (Harper-Collins/Avon), published in 19 languages, and a bestseller in 14 countries.

David has been a Contributing Editor and columnist for Conde Nast Portfolio, and a Contributing Editor for Wired and Discover. He has been a longtime commentator for NPR's "Morning Edition," and a special correspondent and producer for ABC's Nightline and 20/20. He has been a correspondent for NOVA's ScienceNow!, and a producer for Discovery Television. He has written for Harper's, Atlantic Monthly, Smithsonian, Outside, The Telegraph, The Guardian, The Washington Post Book World, The San Francisco Chronicle, and The New York Times, among others

In 2003, David won the prestigious Magazine Story of the Year Award from the American Association for the Advancement of Science. His articles have twice been cited in nominations for National Magazine Awards, and his work has appeared twice in The Best American Science and Nature Writing.

David is the Founder and Editorial Director of the BioAgenda Institute, an independent, nonprofit program of events and educational initiatives that discusses and analyzes crucial issues in life sciences -- which is being folded into the new Center for Life Science Policy at UC Berkeley. He has been the host of the annual BioAgenda Summit.

David's other books include the bestselling Pedaling the Ends of the Earth (Simon & Schuster), about his bicycle expedition around the world, and Hernando Soto: A Savage Quest in the Americas, called "an astonishing tour de force" by the New York Times Book Review. He wrote Residents: The Perils and Promise of Educating Young Doctors (Scribner) and Cape to Cairo: An African Odyssey (Grove Atlantic). His fiction has appeared in two anthologies. He has taught creative writing at Stanford University. He works at the San Francisco Writer's Grotto, and lives in San Francisco.