A band of beluga whales took in a lost narwhal and made it one of their own, researchers said after discovering the lone whale swimming and playing with its new friends. The narwhal was discovered in the St. Lawrence River, more than 620 miles from its normal habitat, swimming with about dozen of St. Lawrence River belugas. Narwhals normally live in the Arctic near Canada, Greenland, Russia and Norway, CBC News reported. GREMM said the narwhal was believed to be a juvenile, swimming with mostly male belugas. "It behaves like it was one of the boys," Robert Michaud, the president...