Why do fingers become pruney? - Mark Changizi
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Why do fingers become pruney when they get wet? Likely, for the same reasons that tires have treads. Mark Changizi examines the evolutionary reasons for pruney fingers, while exploring natural and manmade phenomena, like river networks, that operate similarly.
Explain why the “rain tread” hypothesis predicts that peculiar pattern of wrinkles. Include the issue of whether fingertips are “basins” or “promontories”.
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Meet The Creators
- Director Lippy
- Educator Mark Changizi
- Narrator Mark Changizi
