Giant panda years ago) from the main ursine stock; since it is the most basal member of the group, it is equidistant from all other extant ursids. The giant panda has been referred to as a living fossil. Despite the shared name, habitat type, and diet, as well as a unique enlarged bone called the "pseudo thumb" (which helps them grip the bamboo shoots they eat) the giant panda and red panda are only distantly related. The word "panda" was borrowed into English from French, but no conclusive explanation of the origin of the French word "panda" has been found. The closest
Giant panda diet. Anthropologist Russell Ciochon observed: "[much] like the vegetarian gorilla, the low body surface area to body volume [of the giant panda] is indicative of a lower metabolic rate. This lower metabolic rate and a more sedentary lifestyle allows the giant panda to subsist on nutrient poor resources such as bamboo." Similarly, the giant panda's round face is the result of powerful jaw muscles, which attach from the top of the head to the jaw. Large molars crush and grind fibrous plant material. The morphological characteristics of extinct relatives of the giant panda suggest that while the ancient giant panda