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China on Tuesday released four Yangtze finless porpoises under ex-situ conservation into the country's longest river Yangtze for the first time, with an aim to boost the population of this critically endangered species. The four relocated Yangtze finless porpoises were all born in Tian'ezhou National Nature Reserve in central China's Hubei Province. Researchers will track them for the next three months, and evaluate their adaptability and health status. The Yangtze finless porpoise, which is under top-level state protection, is an important indicator of the Yangtze River ecology. #shorts
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