The immortal jellyfish, Turritopsis dohrnii, can revert from adulthood back to its polyp stage when threatened by danger or starvation.
Notes on verification
Confirmed by multiple independent reputable sources including AMNH, Natural History Museum UK, ScienceAlert, and a 2025 bioRxiv preprint, all describing the same transdifferentiation mechanism. [tier=gold indep_score=0.838 clusters=4 claim_tier=notable]
Sources
- Is There a Cure for Aging? (seed:health_and_medicine)
- https://www.amnh.org/explore/news-blogs/immortal-jellyfish (corroboration)
- https://www.nhm.ac.uk/discover/immortal-jellyfish-secret-to-cheating-death.html (corroboration)
- https://www.sciencealert.com/the-immortal-jellyfish-can-age-in-reverse-and-possibly-live-forever (corroboration)
- https://www.biorxiv.org/content/10.1101/2025.07.02.660568.full.pdf (corroboration)