Jonathan the giant tortoise, 194, offers up insight into secrets of longevity
Jonathan the giant tortoise at home on the island of St Helena in the South Atlantic. Photograph: St Helena Government, Communications HubView image in fullscreenJonathan the giant tortoise at home on the island of St Helena in the South Atlantic. Ailing mitochondria have been strongly linked to ageing and age-related diseases.“We’re still trying to work out how ageing occurs and Jonathan gives us a real window on to what happens over a long period of time,” said Stephen Clark, a senior researcher on the project at the non-profit Kallel Foundation.
- ▪Jonathan the giant tortoise at home on the island of St Helena in the South Atlantic.
- ▪Photograph: St Helena Government, Communications HubView image in fullscreenJonathan the giant tortoise at home on the island of St Helena in the South Atlantic.
- ▪Ailing mitochondria have been strongly linked to ageing and age-related diseases.“We’re still trying to work out how ageing occurs and Jonathan gives us a real window on to what happens over a long period of time,” said Stephen Clark, a sen
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Record
| Original publisher | The Guardian — Science |
| Canonical URL | https://www.theguardian.com/science/2026/oct/07/jonathan-the-giant-tortoise-194-offers-up-insight-into-secrets-of-longevity |
| Publication time | Wed, 07 Oct 2026 18:00:02 GMT |
| Retrieval time | 2026-10-07T20:57:28.885Z |
| Last seen | 2026-10-07T20:57:38.140Z |
| 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 | 0bVq0v96WmNM · 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 |
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| 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
Jonathan the giant tortoise at home on the island of St Helena in the South Atlantic. Photograph: St Helena Government, Communications HubView image in fullscreenJonathan the giant tortoise at home on the island of St Helena in the South Atlantic. Photograph: St Helena Government, Communications HubAgeingJonathan the giant tortoise, 194, offers up insight into secrets of longevityDNA analysis of oldest living land animal reveal patterns on genes that appear to protect functioning of mitochondriaIan Sample Science editorWed 7 Oct 2026 14.00 EDTLast modified on Wed 7 Oct 2026 15.36 EDTSharePrefer the Guardian on GoogleThe ancient quest to extend human lifespan has received a boost after scientists analysed the genetic code of the world’s oldest living land animal, a giant tortoise called…
Excerpt limited to ~120 words for fair-use compliance. The full article is at The Guardian — Science.
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