(CNN)– A new study shows cocaine contamination in waterways could lead juvenile Atlantic salmon to swim farther. It focuses on three groups of two-year-old hatchery fish given tiny implants. Those implants contained either cocaine, its main metabolite byproduct, or no added chemicals. The Swedi sh University researchers say the byproduct group swam almost twice as far as the control group. They say the cocaine group fell in the middle. The study is in the journal “current biology.” Click here for more news from ABC Columbia. Categories: News ...read more read less