Infact
92 / 100
True

The Turritopsis dohrnii jellyfish can reset its cellular life cycle and return to its juvenile polyp stage after reaching adulthood, making it theoretically immortal.

Infact verdict: True (92/100).

The claim that the Turritopsis dohrnii jellyfish can reset its cellular life cycle and return to its juvenile polyp stage after reaching adulthood is supported by multiple high-quality sources. This jellyfish is known for its ability to revert to its juvenile form through a process called transdifferentiation, especially when stressed or injured. This unique capability effectively allows it to restart its life cycle, which is why it is often referred to as 'biologically immortal.'

September 25, 2026 Language: en 1 claim analyzed
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Individual claims

92
True Science
The Turritopsis dohrnii jellyfish can reset its cellular life cycle and return to its juvenile polyp stage after reaching adulthood.
The claim is supported by high-quality sources such as Wikipedia and other scientific articles, which confirm that the Turritopsis dohrnii jellyfish can revert to its juvenile polyp stage through transdifferentiation. This process allows it to effectively restart its life cycle, supporting the notion of biological immortality.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 90
Web Consensus Weight 40
Source Quality Score 85
Source Quality Weight 20
Llm Reasoning Score 85
Llm Reasoning Weight 40
Llm Reasoning Score Raw 85
Weighted Total 92
Evidence Summary Multiple high-quality sources confirm the jellyfish's ability to revert to a juvenile stage.

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