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. Read more …
Source: Jawless Fish can regrow their spinal cords ― twice : Nature Research Highlights