ailuropoda melanoleuca Asian bear bamboo bamboo-eater bear black and white breeding programme captive captivity china chinese conservation distinctive distinguished emblem emblematic endangered giant panda giant panda bear habitat herbivore herbivorous lone mammal mountainous habitat oriental bear panda ponderous popular protected protection sedentary solitary symbol symbolic unique wallpaper zoo ailuropoda-melanoleuca Asian-bear breeding-programme eating food giant-panda giant-panda-bear mountainous-habitat oriental-bear panda-food snacking