NIAGARA FALLS –  Tofino approached each of his handlers in turn as they knelt in shallow water and stroked his sides. Shortly after, a crane hoisted the more than 1,500kg beluga whale into a lorry to be shipped out of Canada to his new home, SeaWorld San Antonio – the last of 30 belugas and four dolphins to leave Marineland, a shuttered sea park near Niagara Falls. Marineland needed to find a new home for its whales. But when the Canadian government rejected its plan to sell them to China over concerns about animal welfare, the park’s operations said they would have to be euthanised. That spurred an international rescue operation by several aquariums, leading to the largest ever transfer of captive whales this summer. But hopes that the animals were headed to a better life have been dampened by a number of deaths in the group. Photographer Carlos Osorio documented the move, which involved whales being flown to Chicago, Atlanta, San Diego, San Antonio and even Valencia in Spain.