# Why can’t people regenerate limbs like salamanders?

- Link: https://www.widthness.com/why-cant-people-regenerate-limbs-like-salamanders/
- Published: 2026-10-09T09:45:00-05:00
- Author: Curated by John Wysocki

Image caption: Salamanders like axolotls are champions of regeneration. Image credit: Magnific. Article by Junsu Kang. The Conversation – October 5, 2026. 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. Salamanders are known as champions of regeneration. If a salamander loses a leg, it can regrow another one, complete with bones, nerves, blood vessels and muscles. Some fish are impressive regenerators too. Zebrafish – small, striped fish that scientists often use to study human diseases – can regenerate injured fins. Even more surprisingly, they can repair damaged parts of important organs such as their heart and brain. Why can these animals regenerate while people cannot? […] Click here to view the original article at www.theconversation.com Related articles: The case for regeneration over slowing decline – Longevity.Technology Fibronectin found to reprogram immune cells and drive tooth regeneration – Bioengineer.org Protein LMOD1 offers new clues to muscle regeneration – Medical Xpress Silicon Valley billionaires are obsessed with ‘reprogramming’ their bodies for longevity. The first human trial suggests they may be onto something. – Business Insider The 194-Year-Old Tortoise Scientists Hope Can Explain Extreme Longevity – Gadget Review