Using the quick search there are shown up to three reports about regrowth:
Tiny wonders of the aquarium world, zebrafish can regenerate organs and tissues, including hearts, eye parts and fins. When a fin is lost, the fish regenerates a perfect copy in two weeks by orchestra...
Biowissenschaften Chemie |Using the fulltext-search for the word regrowth you can set up serveral searching-options > choose search options