Postcards from the Sixth Mass Extinction Series ( 12 Titles)

So far there have been five notable mass extinctions on Earth. A growing number of scientists argue that we're now in the midst of a sixth. Postcards from the 6th Mass Extinction, hosted by John P. Rafferty, attempts to personalize extinction, emphasizing the survival challenges that familiar forms of life currently face, while at the same time considering the pivotal roles they play in their own ecosystems.