Kallel-led researchers found 287 gene changes unique to Jonathan, the 194-year-old Aldabra tortoise, touching DNA repair, inflammation, insulin and cancer. Because the baseline was just four other tortoises, the 287 are candidates to explain his slow ageing.
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Reality
- Evidence58
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The little brown bat's cells answered a lethal dose by turning up cell-death genes
A Berkeley team's first analysis of eight Myotis genomes, out in Nature, links longer bat lifespans to higher levels of cancer-fighting genes. The same lab's dish experiments point at how damaged cells get cleared.
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Antarctic soil hands microbiology's 'everything is everywhere' rule a controlled exception
Nick Dragone's team sequenced more than 100 Antarctic Arthrobacter strains and found 90 percent with no match anywhere else, a result whose strength rests on how thoroughly the rest of the world has been sampled.
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Testis-biased genes predict whether a gecko's new sex chromosome becomes a Z or an X
Across 22 gecko species, and again across 39 vertebrates, ancestral chromosomes rich in testis-expressed genes became Zs while the gene-poor ones became Xs. That is a rule with a direction, so it can be tested elsewhere.
Reality
- Evidence52
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A Nature study of eight Myotis genomes argues pathogen adaptation, longevity and cancer resistance run through shared, pleiotropic genes, redirecting where aging and cancer researchers might look.
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Reality
- Evidence82
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- Hype gap+18
- Incentives45
- Confidence74