Chicago's Brookfield Zoo leads effort to protect polar bears as Trump opens Arctic refuge to oil drilling‎

Shortly after her arrival last fall, Amelia Gray met Hudson, and the pair hit it off immediately. They touched their noses together in greeting and chuffed—a soft, breathy, snorting sound that signals affection or reassurance. Amelia Gray rolled on her back, gently pawing at her counterpart. Later that same day, they played in the pool together.