Science Dead dolphins: Peru's beaches littered with hundreds of dead dolphins – again

Dead dolphins: More than 400 dead dolphins were found in northern Peru in January. In 2012, more than 870 dead dolphins were found in the same area, and the cause of death was never determined.

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STR/AP

More than 400 dead dolphins were found last month on the Pacific Ocean beaches of northern Peru where twice that number were found in 2012, officials said Monday.