Could we bring back mammoths?

It’s not science fiction, there’s serious science to bringing extinct species back to life. Beth Shapiro, associate professor of ecology and evolutionary biology at the University of California, Santa Cruz, joins host Krys Boyd to discuss cutting-edge DNA research and decisions about which animals might be brought back, along with ethical challenges that science must grapple with. Her book is called “How To Clone A Mammoth: The Science of De-Extinction.