Why can't people regenerate limbs like salamanders?
Imagine losing an arm and simply growing a new one. This amazing ability of regeneration isn't just something from a superhero movie—it actually happens in real life for some animals.
People often wonder why humans cannot regenerate limbs like certain animals, such as salamanders and zebrafish. These animals, like axolotls, have an unparalleled ability to regenerate lost limbs, complete with bones, nerves, blood vessels, and muscles. When a salamander loses a leg, it can regrow a new one, while zebrafish can repair damaged organs like their heart and brain. The question remains: why can these animals regenerate while people cannot?
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- Why can’t people regenerate limbs like salamanders? theconversation.com
