In the Earth¯s ecosystem, many species of animals live with mutual cooperation and influence on each other. For example, mankind benefits as much 2.9 trillion dollars from biological diversity. Despite this benefit, however, because of the paucity of awareness of environmental importance, many species are endangered. According to the statistics, the problems of the ecosystem are serious; three species per hour and 20-40 thousands species per year become endangered. China, well known for its variety of climate conditions and its abundant topography, is also faced with the problem of endangered species. Especially, in the case of the giant panda, the emblem of China, C
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