Sea Creature Regenerates From Pieces

Researchers have uncovered a remarkable regenerative capacity in the solitary ascidian, Polycarpa mytiligera. Studies revealed that when this sea creature is divided into segments, each surviving piece can regenerate into a whole, functioning organism. This ability is particularly surprising given the animal's solitary nature and lack of asexual reproduction, unlike some of its colonial relatives known for regeneration.

The investigation, conducted in the Gulf of Aqaba, involved cutting the ascidians and monitoring their recovery over 40 days. Results showed that within this period, all tested fragments developed into separate individuals, albeit smaller than the original. These regenerated animals successfully rebuilt major organs, including their heart, digestive system, and neural complex, demonstrating functional recovery through tissue rebuilding and new organ formation.

Further genetic analysis placed P. mytiligera genetically close to colonial species capable of asexual reproduction, suggesting a shared evolutionary basis for regenerative abilities. This finding highlights an unusual survival strategy for a solitary species, offering a unique model for studying extreme regeneration.