Chordates - CrashCourse Biology #24
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 ...
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Next time someone asks you who you think you are, just give them the facts. You're a mammalian amniotic tetrapodal sarcopterygiian osteichthyan gnathostomal vertebrate cranial chordate. Yeah, it's a mouthful. And in order to understand what it means, you're going to have to understand the most complex group of animals on earth, and what it takes to get from this to this. The phylum Chordata accounts for all 52,000 species of vertebrates on earth and several thousand species of invertebrates. Together they range from tiny, brainless filter feeders all the way up to Scarlett Johansson. Now, you know by now that when we talk about classifying animals, we're really talking about their shared ancestry, each new branch on this tree marking an important new evolutionary mil...
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Next time someone asks you who you think you are, just give them the facts. You're a mammalian amniotic tetrapodal sarcopterygiian osteichthyan gnathostomal vertebrate cranial chordate. Yeah, it's a mouthful. And in order to understand what it means, you're going to have to understand the most complex group of animals on earth, and what it takes to get from this to this. The phylum Chordata accounts for all 52,000 species of vertebrates on earth and several thousand species of invertebrates. Together they range from tiny, brainless filter feeders all the way up to Scarlett Johansson. Now, you know by now that when we talk about classifying animals, we're really talking about their shared ancestry, each new branch on this tree marking an important new evolutionary mil...
