Manitoba Zoo keeps food smells from cafe away from bears WINNIPEG, Manitoba, Feb. 1 (UPI) -- Officials at a Manitoba zoo said steps are being taken to ensure food smells from a cafe opening Friday do not waft into the polar bear area. The Assiniboine Park Zoo in Winnipeg said the Tundra Grill and Polar Playground, which opened its doors Friday, includes a high-tech ventilation system employing pollution scrubbers and ultraviolet lights to keep the food smells from being picked up by the polar bears in the adjacent Journey to Churchill exhibit, the Canadian Broadcasting Corp. reported Friday. Officials said garbage from the cafe is being kept refrigerated to shield the animals from odors.