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The Conversation USA

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
imageCartilage makes this scalloped hammerhead shark's body flexible.NOAA NMFS, CC BYimage

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

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

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