The immortal jellyfish, Turritopsis dohrnii, can revert from adulthood back to its polyp stage when threatened by danger or starvation.
Sources
- Is There a Cure for Aging? (webmd.com)
- https://www.amnh.org/explore/news-blogs/immortal-jellyfish (amnh.org)
- https://www.nhm.ac.uk/discover/immortal-jellyfish-secret-to-cheating-death.html (nhm.ac.uk)
- https://www.sciencealert.com/the-immortal-jellyfish-can-age-in-reverse-and-possibly-live-forever (sciencealert.com)
- https://www.biorxiv.org/content/10.1101/2025.07.02.660568.full.pdf (biorxiv.org)
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