Northern N. Atlantic only, ranging north to pack ice edge. In U.S Atlantic, from New England north. Seen off Cape Cod and in the Gulf of Maine April-November.
Natural History Sexually mature at 2.5m in length. Breed in warm water months. Single calf born June-September after gestation of about 12 months. Single to groups of hundreds. Fast swimmers; may breach or bow ride. Have been seen with fin, killer, and other whales.