Unexpected factsSourced
A jellyfish that can return
to an earlier life stage.
Turritopsis dohrnii can revert from the mature jellyfish stage to a polyp stage. That does not make it immune to predators or disease.
Biological rejuvenation
is not invulnerability.
Summary / translation: Unbubly · CC BY-SA 4.0
Source and reuse details
Turritopsis dohrnii · Wikimedia contributors
Adapted, summarized and translated from the source. Adapted text is also available under CC BY-SA 4.0.
Reviewed: 2026-09-30