Pesticide Turns Male Frogs Into Females

frogs

A commonly used pesticide known as atrazine can turn male frogs into females that are successfully able to reproduce, a new study finds.While previous work has shown atrazine can cause sexual abnormalities in frogs, such as hermaphroditism (having both male and female sex organs), this study is the first to find that atrazine’s effects are long-lasting and can influence reproduction in amphibians.

The results suggest that atrazine, which is a weed killer used primarily on corn crops, could have potentially harmful effects on populations of amphibians, animals that are already experiencing a global decline, said study author Tyrone B. Hayes of the University of California, Berkeley. Atrazine is banned in Europe.And since atrazine interferes with the production of the sex hormone estrogen, present in people and frogs, the findings could have implications for humans as well. “If you have problems in amphibians, you can anticipate problems in other animals,” Hayes said.
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