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How Do Lizards Regrow Their Tails?

How Do Lizards Regrow Their Tails?

蜥蜴如何再生尾巴?

  1. Some lizards break off their tails when danger comes near.
  2. Special cells at the tail base start dividing rapidly after loss.
  3. These cells form a new structure called a cartilage rod, not bone.
  4. Muscles and skin grow over it, making a functional but simpler tail.
  5. The new tail lacks original vertebrae and nerves, so it moves less smoothly.
  6. Regrowth takes weeks to months, depending on species and age.
  7. Scientists study lizard genes to help human tissue repair research.
  8. Not all lizards regrow tails—the ability varies across families.
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