三级aa视频在线观看-三级国产-三级国产精品一区二区-三级国产三级在线-三级国产在线

   

'Extinct' dolphin spotted in Yangtze River

(Xinhua)
Updated: 2007-08-29 19:49

WUHAN -- A white-flag dolphin has been seen in Yangtze River in east China, just days after a leading Chinese scientist said the animal was likely extinct.

A baiji dolphin. [File] 

A man with a decoration company in east China's Anhui Province spotted a "big white animal" in the river at Xuba ferry in Tongling, Anhui, at 3:10 to 3:20 pm August 19, and filmed it with a digital camera, said Dr. Wang Kexiong, of the Institute of Hydrobiology of the Chinese Academy of Sciences.

Judged from its appearance and living environment, the animal in the footage was confirmed by the institute to be a white-flag dolphin, known in Chinese as "baiji", Wang said.

"We are very glad to see baiji still exist in the world," Wang said.

"Many people have believed that baiji is extinct and this finding brings us a sliver of hope," said Wang Ding, a leading expert on the species from the hydrobiology institute of the Chinese Academy of Sciences. But he noted that it is still quite difficult to protect the endangered animal.

Because few of this species still live in the Yangtze River, their chance of mating is slim, said Wang Ding, who added that a measure is to gather these animals in one section of the river for breeding.

"This is no easy task. But if we don't do that, white-flag dolphins are doomed to go extinct," he said.

Zeng Yujiang, the man who spotted the dolphin, told Xinhua, "I never saw such a big thing in the water before, so I filmed it. It was about 1,000 meters away and jumped out of water for several times."

The footages were sent to the Tongling freshwater dolphin nature reserve to determine what the animal was. A staff with the Institute of Hydrobiology of the Chinese Academy of Sciences, who happened to be in the nature reserve, then brought the footages to the institute based in Wuhan, capital of central China's Hubei Province, which was well-known for research on baiji.

The white-flag dolphin, unique to China's Yangtze River, is listed as one of the 12 most endangered species in the world. Its population dropped to below 150 in the early 1990s from around 400 a decade earlier.

A team of 25 scientists from China, the United States, Britain, Japan, Germany and Switzerland failed to find any white-flag dolphin during a 38-day search last year.

Wang Ding, a leading expert on the species from the hydrobiology institute of the Chinese Academy of Sciences and head of the team, said earlier this month "This result means the baiji is likely extinct."

Before the search, scientists had estimated there would be no more than 50 dolphins in the river, a prediction that appears wildly optimistic.

If the white-flag dolphin is extinct, it will be the first cetacean to vanish as a result of human activity as it is on the top of food chain in Yangtze River and has no natural enemy, according to Wang Ding.

The professor is planning a trip to Tongling with some experts. "I hope we could find that white-flag dolphin then," he said.



Top China News  
Today's Top News  
Most Commented/Read Stories in 48 Hours
主站蜘蛛池模板: 欧美成人精品一区二三区在线观看 | 国产三级精品在线观看 | 黑人解禁在线观看 | 九一精品视频 | 免费黄色小视频 | 国产综合精品在线 | 国产精品1区| 五月六月婷婷 | 久久电影精品久久99久久 | 五月婷婷综合色 | 国产免费久久精品 | 午夜寻花高颜值极品女神 | 国产一级片在线播放 | 手机在线一区二区三区 | 国产成人亚洲综合在线 | 国产一区中文字幕 | 可以直接看的av网址站 | 国产大尺度吃奶无遮无挡网 | 国产精品色婷婷在线观看 | 亚洲国产激情在线一区 | 午夜国产大片免费观看 | 国产色网站 | 1313午夜精品久久午夜片 | 国产一二三区在线 | 欧美成人tv在线观看免费 | 日鲁夜鲁鲁狠狠综合视频 | 黄色小视频免费看 | 日韩精品中文字幕视频一区 | 国产图片综合区 | 麻豆国产成人精品午夜视频 | 小优视频在线 | 爱爱网网站免费观看 | 精品湿| 中文字幕亚洲高清综合 | 国产免费爽爽视频免费可以看 | 亚洲在线免费视频 | 91蜜桃传媒一二三区 | 亚洲欧美在线中文字幕不卡 | 亚洲另类在线视频 | 国产第一页无线好源 | 一级做a爰片久久毛片欧美 一级做a爰片久久毛片图片 |