Mutated Trout Raise New Concerns Over Selenium

Mutated Trout Raise New Concerns

It was the two-headed baby trout that got everyone’s attention.

Photographs of variously mutated brown trout were relegated to an appendix of a scientific study commissioned by the J. R. Simplot Company, whose mining operations have polluted nearby creeks in southern Idaho. The trout were the offspring of local fish caught in the wild that had been spawned in the laboratory. Some had two heads; others had facial, fin and egg deformities.

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