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Reposted by ProfColinBean

UBC Oceans @ubcoceans.bsky.social · 03/09/2026

Sometimes called supermales or Trojan YY males, they have two Y chromosomes instead of one. When supermales mate with female wild trout, the offspring are all male—eventually producing a population that consists only of elderly bachelors. www.science.org/content/arti...

science.org

To doom invasive fish, scientists are breeding ‘supermales’

Technique shown to eradicate exotic trout—by producing all male populations

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