Previous Part The Origin of Vertebrates
Marc W. Kirschner, Jan. 2008
Harvard Medical School/Systems Biology		 Next Part
Lecture Overview
In Part 2: Telling the back from the front or what the chordates invented, I discuss why we look like invertebrate animals turned upside down, i.e. vertebrates have their central nervous system on their backs and invertebrates have it on their bellies.
Part 2: Telling the Back from the Front or What the Chordates Invented (27:47)
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    • Part 1: The Origin of the Vertebrate Nervous System: The Hemichordate Perspective (33:29)

     


    Part 3: How Chordates Got Their Chord (19:09)




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