Big Picture Science – Hidden History: Peter Ward / Slow Motion Extinction

by Gary Niederhoff on November 1, 2016

Peter Ward / Slow Motion Extinction
click to listen (trt 11:41)

Part 4 of Hidden History, featuring Peter Ward, paleontologist at the University of Washington and author of A New History of Life: The Radical New Discoveries about the Origins and Evolution of Life on Earth, who suggests that volcanic activity was precipitating a mass extinction event long before an asteroid impact ended the Cretaceous period, and David Morrison, senior scientist at the NASA Ames Research Center, who maintains that other geological forces were likely insignificant compared to the asteroid impact.

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