‘Toxic stew’ causes intersex fish in US

Intersex fish, found across the US, result from a mix of drugs that mimic natural hormones, say scientists More than 80% of the male bass fish in Washington’s major river are now exhibiting female traits such as egg production because of a “toxic stew” of pollutants, scientists and campaigners reported yesterday. Intersex fish probably result from drugs, such as the contraceptive pill, and other …

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