Bramble: Jonathan the tortoise https://news.ketelle.co.uk/entities/jonathan-the-tortoise Stories involving Jonathan the tortoise, told neutrally, with how each side covers them. en-gb Genome of Jonathan, 194-year-old tortoise, hints at how he has lived so long https://news.ketelle.co.uk/stories/jonathan-the-194-year-old-tortoise-s-genome-offers-longevity-clues https://news.ketelle.co.uk/stories/jonathan-the-194-year-old-tortoise-s-genome-offers-longevity-clues Wed, 07 Oct 2026 19:31:28 +0100 Science Researchers have sequenced the genome of Jonathan, an Aldabra giant tortoise on St Helena thought to be about 194, and found genetic and chemical features, notably in mitochondrial genes, that look youthful. The authors say they cannot yet show these explain his longevity. (4 outlets: 2 left · 2 centre · 0 right)