Extinctions: Past and Present Week 3 - Bringing life to its knees

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Abstract
In this video, Professor Anusaya Chinsamy-Turan explores the development of reptiles and dinosaurs and how they laid the ground for the future development of birds and mammals. She then explores important details about the third mass extinction event. She focuses on the loss of biodiversity and the recovery period that followed while exploring several hypotheses for why this extinction event occurred. This is video 2 in Week 3 of the Extinctions: Past and Present MOOC.
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