Breathless Through Time: How Oxygen Can Alter Evolution and Adaptation of Life in the Ocean

5/11/2015; 50 minutes

The oxygen content of earth's ocean has changed dramatically through time, beginning with essentially no oxygen and rising to present-day levels, with important consequences for the evolution of life. Oxygen levels in modern oceans are also shifting as a consequence of global warming. Learn how low-oxygen settings in the modern ocean can inform us about the "explosion" of animal life more than half a billion years ago, mass extinctions, and the future our ocean. Recorded on 3/9/2015. (#29255)

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