One year later, scientists are seeing the oil's impact on the Gulf's fragile ecosystem. At the Institute of Marine Mammals Studies in Gulfport, Mississippi it comes daily, in the form of dead and dying animals.
Moby Solanji, the director of the Institute, says the number of animals washing up on the shores should be declining, but that isn't the case.
MOBY SOLANJI, DIRECTOR OF THE INSTITUTE FOR MARINE MAMMAL STUDIES, SAYING: "We started seeing a large amount of dolphins dying in the months of January and February. When normally we see one or two, we have seen a ten to fifteen fold increase in the numbers of animals dying in Mississippi and Alabama. But the more unusual part is that most of them were baby dolphins who were be born stillborn or premature or dying just after they were born. So something is happening.