Pandas are in the carnivore family and, for the most part, have the digestive system of a carnivore. Long ago, for reasons scientists do not understand (perhaps because they could not compete well for food with other carnivores), pandas adapted to a vegetarian diet. Pandas now feed almost exclusively on the stems and leaves of bamboo. Although, ninety-five to ninety-nine percent of the pandas' diet is bamboo, they also eat flowers, vines, mushroom, grass, fish, and small rodents.
The only remaining wild pandas live in a small area of China. Approximately 980 of the 1,600 wild pandas are living in protected reserves. If bamboo in reserves fails to thrive, the pandas will be forced to leave the protected reserves in search of food. Some pandas inside and outside of reserves may not be able to travel to where new sources of bamboo are growing. Habitat destruction combined with human industrialization has isolated some groups of pandas, making travel difficult if not impossible.