Beth Shapiro, Professor of Ecology & Evolutionary Biology at UC Santa Cruz, explains her work on using ancient DNA to infer evolutionary history and processes. She is the MacArthur Award-winning author of "How to Clone a Mammoth: The Science of De-Extinction," which considers the feasibility and desirability of bringing back passenger pigeons, steppe bison, mammoth and other currently extinct species. This program is presented by the Institute for Practical Ethics in the Division of Arts and Humanities at UC San Diego. [Show ID: 33419]