Jawless Fish Can Regrow their Spinal Cords ― Twice | Nature Research Highlights
![Eleven weeks after being cut, a lamprey’s spinal cord shows regrowth of some of its nerve fibres (green) and the tube-like central canal (blue). Credit: S. Allen and J. Morgan](/sites/default/files/styles/focal_point_1000x325/public/2023-01/Lamprey-Spinal-Cord-regrowth-JenMorgan-S.Allen-feature.jpg?itok=3fMK6CXI)
Eleven weeks after being cut, a lamprey’s spinal cord shows regrowth of some of its nerve fibres (green) and the tube-like central canal (blue). Credit: S. Allen and J. Morgan
A jawless fish called the lamprey is known for its resilience: after its spinal cord is severed, it can regrow part of its central nervous system and resume swimming normally. Now, [MBL] scientists have discovered that the sea lamprey (Petromyzon marinus) can repeat the feat even if the same site is re-injured.
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