水生馆里的“长江国宝”
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Yangtze finless porpoises seen in Wuhan
11月10日，两头长江江豚在水中游动。在中科院水生所武汉白鱀豚馆里，生活着6头长江江豚。长江江豚是一种古老的水生哺乳动物，在地球生活已有2500万年，被称为长江生态的“活化石”，仅分布于长江中下游干流及与之相连的鄱阳湖、洞庭湖等水域。它头部浑圆、体形流畅，弯弯的嘴角像是挂着憨态可掬的“微笑”，被称为“微笑天使”。自20世纪80年代以来，长江江豚种群量快速衰减。据科考研究，目前长江江豚数量仅有1000余头。目前，科研人员对长江江豚保护主要以迁地保护和人工饲养为主。[新华社 肖艺九 摄]
Yangtze finless porpoises swim at the Yangtze River Dolphin aquarium in the Institute of Hydrobiology of the Chinese Academy of Sciences in Wuhan, capital of central China's Hubei Province, on Nov. 10, 2018. With a slightly curved mouth, the Yangtze finless porpoise is often called the "smiling angel" of the Yangtze by Chinese. However, the population has been rapidly decreasing over the last three decades due to environmental deterioration. The species now teeters on the brink of extinction with a population of around 1,000 in the main waterway of the Yangtze, according to research conducted in 2012. (Xinhua/Xiao Yijiu)
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