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Feature FilmFive times in Earth’s past, the vast majority of plant and animal species have been annihilated in a geologic instant. What triggered these dramatic events, and what might they tell us about the fate of our world?
Feature Film(54 min 41 sec) See how the genetic legacy of a fish can be seen today in our own DNA. PLEASE NOTE: Due to international distribution restrictions, these programs can only be streamed in the United States and Canada.
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