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Why do humans have bones instead of cartilage like sharks?

  • Written by Michael Heithaus, Executive Dean of the College of Arts, Sciences & Education and Professor of Biological Sciences, Florida International University
Why do humans have bones instead of cartilage like sharks?Cartilage makes this scalloped hammerhead shark's body flexible.NOAA NMFS, CC BYWhy do humans have bones instead of cartilage like sharks?

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Why do humans have bones instead of cartilage like sharks? – Natalya N., age 12, Aliso Viejo, California

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