Study: BPA blurs distinction between fish species

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While the destinctive red fins and tail differentiate this red shiner from the similar blacktail shiner, which has silver fins and a black spot on its tail, BPA makes it more difficult for fish to detect the difference.

Endocrine-disrupting chemicals released into rivers affect the mating choices of fish, altering the courtship behavior of males and the mate preferences of both sexes. A new study published online this month in the journal Evolutionary Applications demonstrates how these changes lead to inter-species breeding and threaten biodiversity.

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