A Sea Cucumber's Amputated Tissue Refuses to Die. Could It Live Forever?

Canadian researchers found that tissue from the scarlet sea cucumber Psolus fabricii stayed alive and biologically active for more than three years after amputation.

The isolated tube feet and tentacles repaired damage, regenerated, and continued moving in natural running seawater.

The study challenges assumptions about how long animal tissue can survive outside the body.

Scientists say the finding could offer clues about regeneration, repair, and long-term tissue survival.