Sharks And Rays Have The Oldest Vertebrate Sex Chromosomes And...

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2025-07-28 17:00:11

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Sharks And Rays Have The Oldest Vertebrate Sex Chromosomes And Theyre Like No One Elses

At first sight, sharks and rays appear to determine sex much like mammals do, but theyve found a different way, and been doing it for hundreds of millions of years.

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