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Your Inner Fish – Neil Shubin Chapter 2: Getting a Grip

Your Inner Fish – Neil Shubin Chapter 2: Getting a Grip. By Maddie Rosen. Source: http://tiktaalik.uchicago.edu/book-tools.html. Hands, Hands Everywhere!. 27 bones 34 muscles 48 nerves. Source: http://www.presentationgroup.com/medicallibrary/. Manufacturing Limbs. Recipe for a limb:

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Your Inner Fish – Neil Shubin Chapter 2: Getting a Grip

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  1. Your Inner Fish – Neil ShubinChapter 2: Getting a Grip By Maddie Rosen Source: http://tiktaalik.uchicago.edu/book-tools.html

  2. Hands, Hands Everywhere! 27 bones 34 muscles 48 nerves Source: http://www.presentationgroup.com/medicallibrary/

  3. Manufacturing Limbs • Recipe for a limb: • One Bone upper • Two Bones lower • Nine bone wrist • Five finger rods • Exceptional Similarities Source: http://tiktaalik.uchicago.edu/book-tools.html

  4. Origin of Limbs • Lepidosiren paradoxa • Eusthenopteron • Ichthyostega • Acanthostega gunnari Source: http://tiktaalik.uchicago.edu/book-tools.html

  5. Tiktaalik • Fin with Owen’s pattern • Environment Source: http://tiktaalik.uchicago.edu/book-tools.html

  6. Discussion • Why do you think a limb is set up the way it is? If you were to create a limb would you use more or less bones? Which areas of the arm would you change? • What do you think Tiktaalik used its advanced arms for? Do you think it was mostly a mud-dwelling or water-dwelling animal? Why? • What do you think lead to the change in lifestyle from fish to Tiktaalik? • Why do you think we evolved to be land dwelling creatures and not an intermediate like Tiktaalik?

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