Listing
Mar 1, 1983
- Publication type: Proposed
The giant panda is also known as the panda bear, bamboo bear, or in Chinese as Daxiongmao, the โlarge bear cat.โ In fact, its scientific name means โblack and white cat-footed animal.โ
Scientists have debated for more than a century whether giant pandas belong to the bear family, the raccoon family or a separate family of their own. This is because the giant panda and its cousin, the lesser or red panda, share many characteristics with both bears and raccoons. Recent DNA analysis indicates that giant pandas are more closely related to bears and red pandas are more closely related to raccoons. Accordingly, giant pandas are categorized in the bear family while red pandas are categorized in the raccoon family.
Giant pandas are among the rarest mammals in the world - there are probably about 1,000 left in the wild. Although adult giant pandas have few natural enemies, the young are sometimes preyed upon by leopards.
Giant pandas are found only in the mountains of central China โ in small isolated areas of the north and central portions of the Sichuan Province, in the mountains bordering the southernmost part of Gansu Province and in the Qinling Mountains of the Shaanxi Province.
Giant pandas live in dense bamboo and coniferous forests at altitudes of 5,000 to 10,000 feet. The mountains are shrouded in heavy clouds with torrential rains or dense mist throughout the year. Giant pandas have existed since the Pleistocene Era (about 600,000 years ago), when their geographic range extended throughout southern China. Fossil remains also have been found in present-day Burma.
Adults are four to six feet long and may weigh up to 350 poundsโabout the same size as the American black bear. However, unlike the black bear, giant pandas do not hibernate and cannot walk on their hind legs. The giant panda has unique front pawsโone of the wrist bones is enlarged and elongated and is used like a thumb, enabling the giant panda to grasp stalks of bamboo. They also have very powerful jaws and teeth to crush bamboo.
Giant pandas are bears with striking black and white markings. The ears, eye patches, legs and shoulder band are black; the rest of the body is whitish. They have thick, woolly coats to insulate them from the cold.
While bamboo stalks and roots make up about 95 percent of its diet, the giant panda also feeds on gentians, irises, crocuses, fish, and occasionally small rodents. It must eat 20 to 40 pounds of food each day to survive, and spends 10 to 16 hours a day feeding.
The giant panda reaches breeding maturity between 4 and 10 years of age. Mating usually takes place in the spring, and 3 to 5 months later, one or two cubs weighing 3 to 5 ounces each is born in a sheltered den. Usually only one cub survives. The eyes open at 1 1/2 to 2 months and the cub becomes mobile at approximately three months of age. At 12 months the cub becomes totally independent. While their average life span in the wild is about 15 years, giant pandas in captivity have been known to live well into their twenties.
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