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Watch Crash Course Biology Season 1 Episode 24 Online

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

Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal sarcopterygian osteichthyen gnathostomal vertebrate cranial chordate.