Search Results: "Chondrichthyes"

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• 12:10 Popular

  Chordates - CrashCourse Biology #24

  1,616 views / 0 likes - added 9 years ago

  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 osteich

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