There have been five Mass Extinctions in Earth’s history and right now, we might be in the middle of a sixth. Paleontologist Dr. Michael Benton studies Mass Extinction events. We talk the history of mass extinctions, what causes mass extinction and if humans will survive the next one. Then, we countdown a special “touchy” Top 5. Dr. Michael Benton: 01:24 Pointless: 35:40 Top 5: 55:28 Contact the Show Extinctions: How Life Survives, Adapts and Evolves Learn more about your ad choices. Visit megaphone.fm/adchoices