Randall S. Wells is helping federal researchers asses the health of dolphins in the northern Gulf of Mexico off the Louisiana coast.

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MANATEE, Fla. (AP) - A south Florida man's work is helping researchers better understand long-term damage to dolphins from the massive 2010 BP oil spill.

The Bradenton Herald reported on Sunday that Randall S. Wells is helping federal researchers asses the health of dolphins in the northern Gulf of Mexico off the Louisiana coast. He is the director of the Chicago Zoological Society's Sarasota Dolphin Research Program.

Wells regularly surveys a control group of about 160 dolphins living in the Sarasota Bay region and compares the health of those dolphins with the Louisiana dolphins.

So far, he has found that the south Florida dolphins are healthier than the Louisiana dolphins. But Wells says more study is needed to fully determine how the spill impacted dolphin populations.

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