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Around the world, increasing numbers of male fish are developing female traits -- growing new sexual organs and sometimes even producing eggs. The phenomenon has been blamed mostly on chemicals that get into the water and mimic the female hormone estrogen.
But a new study puts some of the blame on an entirely different class of chemicals -- ones that block the action of male hormones called androgens.
But a new study puts some of the blame on an entirely different class of chemicals -- ones that block the action of male hormones called androgens.
Dude fish looks like a lady — but why?
Around the world, increasing numbers of male fish are developing female traits — growing new sexual organs and sometimes even producing eggs. The phenomenon that has been blamed mostly on chemicals that get into the water and mimic the female hormone estrogen.
www.nbcnews.com
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