David Ehrenfeld is Professor of Biology in the Department of Ecology, Evolution, and Natural Resources, School of Environmental and Biological Sciences, Rutgers University. He is author of seven books, beginning with the pioneering textbook Biological Conservation (Holt, Rinehart & Winston, 1970), and including The Arrogance of Humanism (Oxford University Press, 1978, 1981), Becoming Good Ancestors: How We Balance Nature, Community, and Technology (Oxford University Press, 2009), and, with Carol Mack, a science fiction novel, The Chameleon Variant (Dial Press, 1980).

To learn more about de-extinction, please visit Revive & Restore (the organizer of TEDxDeExtinction) here:longnow.org/revive/

In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)