Yangyang, a female goat cloned from an adult by Chinese scientists in 2000, celebrates her 15th birthday at the breeding base in Northwest University of Agriculture and Forestry Science and Technology, Xi'an, Northwest China's Shaanxi province, June 22, 2015. Goats usually have a life span of 16 to 18 years, and by this standard Yangyang can safely be called a long-lived goat. Yangyang looks listless and lacks appetite due to her age, her keeper said. Yangyang lives in a five-generation family. [China News Service]
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