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In episode 71, we treated a galactic cycle of about 220 million years as a unit of time with which to view evolution. Today, we'll be picking up where we left off and seeing the story through all the way to the end- or rather, the beginning...
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In episode 71, we treated a galactic cycle of about 220 million years as a unit of time with which to view evolution. Today, we'll be picking up where we left off and seeing the story through all the way to the end- or rather, the beginning...
Sources for this episode:
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