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Vestigial Structures

Hank talks about some of the structures in our bodies that are "leftover" from previous evolutionary phases of humanity. Like SciShow on Facebook: Follow SciShow on Twitter: References for this episode can be found in the Google document here: tags: scishow, science, biology, vestigial structures, appendix, wisdom teeth, tailbone, charles darwin, on the origin of species, vestige, evolution, evolve, goosebumps, coccyx, nictitating membrane, eyelid, evolutionary biology, hank green
Length: 04:21


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