Can Cells from a Sea Cucumber Live Forever?
Recent research has revealed that a species of sea cucumber, Psolus fabricii, exhibits remarkable regenerative capabilities. Scientists found that tissue explants from this sea cucumber can survive and thrive for years after being separated from the organism. This discovery challenges existing notions of cellular life and immortality in biology.
- ▪Marine biologists from Memorial University studied the sea cucumber Psolus fabricii and found its tissue explants could live for years.
- ▪The explants showed no signs of decline and actively absorbed nutrients from seawater.
- ▪Researchers termed these living tissues 'LiPfe,' which stands for living immortal P. fabricii explants.
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Story provenance
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Record
| Original publisher | Nautil |
| Canonical URL | https://nautil.us/can-cells-from-a-sea-cucumber-live-forever-1281447/ |
| Publication time | Wed, 27 May 2026 20:00:12 +0000 |
| Retrieval time | 2026-05-27T20:08:04.392Z |
| Last seen | 2026-05-27T20:08:04.392Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | 53-Y-NJJdAl3 · 2 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Nautil.
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