Axolotls Can Regenerate Their Hearts and Even Parts of Their Brains
This Mexican salamander can regrow not only lost limbs, but also spinal cord, heart, and brain tissue without scarring.
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🌿 Nature Wonder
Smithsonian Magazine
Key Metric+20 XP
Roughly how many times larger is the axolotl genome than the human genome?
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Key Insight
Cells at the wound site dedifferentiate into a blastema that rebuilds the missing organ.
Discovery Snapshot
🌿 Nature
Nature Wonder
⚡ 20s42 words
Why / How?
01
Scientific Mechanism
Upon injury, axolotl cells reprogram into a stem-cell-like state to form a structure called a blastema. Unlike mammals that form scar tissue, this process rebuilds complex organs seamlessly.
02
Why It Matters
Cells at the wound site dedifferentiate into a blastema that rebuilds the missing organ.
Verified Source
Smithsonian Magazine