For Alex Ootoowak, watching the speckled gray narwhals migrate in the icy waters of the Arctic during hunting season is a cherished childhood memory. "It felt like a never-ending, looped-over scene of whales just constantly swimming past you all in the same direction, all migrating throughout the day, sometimes more than a day," said Ootoowak, who lives in Mittimatalik, also known as Pond Inlet, in Canada's far north. "You're always taught to be extra, extra quiet and careful […] because they're so sensitive." The world's 80,000-plus narwhals mainly live in northeastern Canada and Greenland. For Ootoowak and others in Canada's Inuit communities, narwhal meat has been key to their survival for at least 1,000 years. It's an important source of protein, iron and vitamin C, and hunting is regulated by the government.…