The primary diet of a panda bear consists of bamboo. Although pandas belong to the order Carnivora, they have adapted to a herbivorous diet primarily composed of various species of bamboo. Adult giant pandas can consume up to 40 pounds of bamboo daily to meet their dietary needs, as bamboo is low in nutrients. To supplement their diet, giant pandas may also eat small mammals, birds, or carrion occasionally. Their reliance on bamboo makes them vulnerable to habitat loss but also makes them unique among bear species.