The brown and white color of Panda is:

aging result
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sign of the disease
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subspecies feature
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photomontage
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Qinling Panda - Ailuropoda melanoleuca qinlingensis is the only subspecies of the giant Panda. Brown and white Qinling Pandas they are usually smaller and live only in the mountains Qinling in Shaanxi province. There have been only 7 documented brown Pandas in the last 25 years, among about 300 Qinling Pandas living in the wild.
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