Can Cells from a Sea Cucumber Live Forever?
Recent research has revealed that cells from a specific species of sea cucumber, Psolus fabricii, exhibit remarkable regenerative capabilities. These cells can survive and thrive for years after being separated from their host, challenging previous notions of cellular immortality. The findings prompt a reevaluation of what it means for tissue to be considered alive.
- ▪Marine biologists from Memorial University discovered that explants from the sea cucumber Psolus fabricii can live for years after being cut from the organism.
- ▪These explants showed no signs of decline and were able to absorb nutrients from seawater, fueling regeneration and immune activity.
- ▪The researchers termed these living tissue blobs 'LiPfe,' highlighting their unique characteristics that blur the lines between organismal life and cellular autonomy.
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Record
| Original publisher | Nautil |
| Canonical URL | https://nautil.us/can-cells-from-a-sea-cucumber-live-forever-1281447 |
| Publication time | Thu, 28 May 2026 23:47:54 +0000 |
| Retrieval time | 2026-05-28T23:59:38.815Z |
| Last seen | 2026-05-28T23:59:38.815Z |
| 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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