The Giant Panda is the rarest member of the bear family. Pandas live in the bamboo forests high in the mountains of western China. They subsist almost entirely on bamboo. They play a crucial role in the bamboo forests by spreading seeds and fostering the growth of vegetation, but because the Panda's habitat is at the heart of the geographic & economic center of China, it is critically endangered. Roads & railroads increasingly fragment it, isolating panda population, making mating difficult.