Why do dogs have floppy ears?
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Have you ever wondered why some dogs have floppy ears, but wolves don't? This video by NPR's Skunk Bear illustrates the evolutionary process that may explain why certain domesticated animals look and act differently than their untamed counterparts.
When do neural crest cells develop in vertebrate animals?
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TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
Meet The Creators
- Video created by NPR's Skunk Bear
- Lesson Plan created by Elise Haadsma
