Study finds sea cucumber appendages can survive indefinitely in seawater

Researchers have discovered that appendages from the sea cucumber species *Psolus fabricii* can remain alive indefinitely when placed in ordinary seawater. This finding contrasts with the typical rapid decay of separated organs and tissues. Sara Jobson, a researcher at Memorial University of Newfoundland and lead author of the study, described this phenomenon as 'naturally occurring tissue immortality.' *Psolus fabricii*, which inhabits the cold waters of the Atlantic and Arctic oceans, has evolved a high capacity for regeneration due to its harsh environment, where its appendages often experience injury and loss.