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Article

The secret of the saws: historical DNA analysis reveals global genetic diversity loss in a highly threatened species.

Proceedings. Biological sciences - 5 Aug 2026

Fearing Annmarie, Smith Kelcee L, Feldheim Kevin A, Moore Alec B M, Charvet Patricia, da Cruz Vanessa Paes, Cooper Madalyn K, Davies Christy, Gentry Alexis K, Gordon Cat, Huerta-Beltrán Bryan L, Kemper Corinne, McDavitt Matthew T, Oliveira Claudio, Ricks Hannah, Taylor Sabrina S, Wiley Tonya R, Wueringer Barbara E, Kyne Peter M, Phillips Nicole M

Abstract excerpt

Genetic diversity is critical to long-term survival of species but can be eroded by population declines driven by human pressures. Temporal genetic monitoring of threatened species can reveal changes in genetic diversity over time, providing key data for conservation. Specimens from natural history collections were used to assess changes in genetic diversity in the Critically Endangered largetooth sawfish...

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PMID: 42551898
DOI: 10.1098/rspb.2026.1044

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