Published on: 2026-08-07
Deep Ocean and Marine Biology
Which of these bizarre creatures is actually biologically immortal, meaning it can technically live forever by reverting to its juvenile polyp stage when stressed?
Correct
The Turritopsis dohrnii, or the immortal jellyfish, pulls the ultimate reverse aging move by turning its cells back into a baby state, essentially hitting the restart button on life. The Giant Squid is a massive legend of the deep, but it definitely hits an expiration date like the rest of us. The Anglerfish is famous for its spooky glowing lure and creepy mating habits, not for dodging death. As for the Leatherback Sea Turtle, while it is an ancient wanderer of the oceans, it eventually grows old just like every other sea creature that does not have the magic of infinite youth.