Dead dolphins wash up on the Gulf Coast.

As ThinkProgress has documented, the BP oil spill off of Louisiana’s coast threatens more than 400 species, with the potential “devastation beyond human comprehension.” Already, brown pelicans, sea turtles, and various types of fish have turned up dead. Now, the National Marine Fisheries Service is reporting that six dolphin carcasses have also been found in Louisiana, Mississippi, and Alabama since May 2. The AP reports that officials are reporting the deaths as “oil spill-related even though other factors may be to blame.” Watch a video taken by NRDC staff of dolphins swimming in water with oil dispersants: