Oxygen the Menace -- Groks Science Show 2013-02-13
Groks Science Radio Show and Podcast · Charles Lee and Frank Ling
February 13, 201325m 24s
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Show Notes
Our current biosphere depends on oxygen to live but that was not always true. On this show, Joe Kirschvink discusses the visciousness of oxygen, the evolution of cyanobacteria, and the Medea hypothesis.