Lobsters are nocturnal and come out at night to hunt for prey such as crabs, clams, mussels, sea urchins, and small fish. Blue lobsters can be cooked and eaten just as other lobsters can.

It was a first for a Massachusetts lobsterman. This week, lobsterman Rucker Allard caught a brightly colored blue lobster off the coast of Nahant. On Wednesday, Allard released the crustacean back ...