Residents fear it's related to oil spill, experts not sure
                                
                                
                                    (Newser) -
                                    Near Louisiana's Plaquemines Parish, there lies what looks like a gravel road. It's not: It's a waterway clogged with hundreds of thousands of dead fish, crabs, stingrays, and eel—so many that it appears solid. A dead whale was also found in the area,  WWL-TV  reports. "Fish kills" are...