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Watch Crash Course Biology Season 2 Episode 16 Online

  • 1.5/10
  • COUNTRIES: United States of America
  • Subtitles: English

Humans may have been around for a long time, but life has existed for way longer. In this episode of Crash Course Biology, we’ll journey through deep time to uncover the history of life on Earth. We’ll explore the big, game-changing leaps where life diversified, changed, and just plain persisted.