bottle-nose dolphin swims in the shallow waters along the beach in Grand Isle

GRAND ISLE, La. - A bottle-nose dolphin swims in the shallow waters along the beach in Grand Isle, La., near a boom that was deployed by Army National Guardsmen May 28, 2010. Teams of workers contracted by BP are cleaning up oil from the Deepwater Horizon/BP oil spill, which began washing up on beaches here one month after the drilling unit exploded. (USCG) 10Spill0528-G-8744K-027