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Uploaded on Jan 5, 2010
February 6, 2008, lecture given by Dr. Michael Rosenzweig, Professor, Ecology and Evolutionary Biology, the University of Arizona. Dr. Rosenzweig's lecture was given as part of the College of Science "The Edges of Life Lecture Series." Science now knows we've taken away enough land from nature to precipitate a mass extinction like the one that exterminated the dinosaurs 65 million years ago. Using reconciliation ecology, we can prevent this - and preserve life.