Signs of BP's Deepwater Horizon Oil Spill Persist Over a Decade Later
Fiddler crabs build their burrows in beaches and in the muck of saltwater wetlands. Usually, those holes serve as the crabs' home and provide each crustacean shelter and a quick escape from predators. But in some long-abandoned fiddler crab burrows along Louisiana's Gulf coast, you'll find something else: Residues of...