No such thing as a shark? Genomes shake up ocean predator’s family tree
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March 13, 2026
submitted by solo to biodiversity
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https://www.nature.com/articles/d41586-026-00594-w
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> Sharks might not be a natural biological group, with most species potentially closer kin to rays than to an oddball group of sharks.
> The results, which haven’t been peer reviewed, suggest that most animals that people call sharks are more closely related to rays and skates than to hexanchiform shark species — just as Gould pointed was the case for some species called fishes. Biologists call such groups paraphyletic.
Discussion in the ATmosphere