亲亲发出吧唧吧唧的声音,美国女子监狱,av 丝袜 欧美 老 另类 亚洲,国色天香久久久久久久小说

Chinese scientists trace how young penguins died off throughout history

Source: Xinhua| 2018-09-21 11:41:57|Editor: ZD
Video PlayerClose

BEIJING, Sept. 21 (Xinhua) -- Chinese scientists find that abrupt climate change and heavy precipitation might have caused young penguins to die off in the Antarctic centuries ago, warning that penguins may face similar disasters under the climate change today.

On Long Peninsula, East Antarctica, scientists from the University of Science and Technology of China identified a widely-distributed area of abandoned penguin breeding grounds where there are numerous mummified penguin carcasses.

Carbon dating revealed that there had been two disasters of collective deaths of penguins in the area around 200 years ago and 750 years ago, respectively.

They analyzed the sediment around the carcasses of the penguins. Based upon the chronological and sedimentary evidence, they propose that the two events were caused by heavy regional precipitation, which led to the abandonment of numerous penguin subcolonies.

The research analyzed the reasons behind penguin disasters throughout history. It also warned that in the context of modern global changes, similar extreme weather events occur frequently, and as precipitation in the Antarctic continues to become more frequent, it could become an increasing threat to penguins.

The research was published in the Journal of Geophysical Research: Biogeosciences.?

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001374839211
主站蜘蛛池模板: 襄城县| 灵台县| 刚察县| 白朗县| 武冈市| 郧西县| 富平县| 汉川市| 郎溪县| 锡林浩特市| 白朗县| 当雄县| 浪卡子县| 井研县| 河北省| 中牟县| 宁德市| 东乌珠穆沁旗| 巴东县| 克拉玛依市| 平湖市| 灌阳县| 平阳县| 北碚区| 陵水| 调兵山市| 高密市| 衡阳市| 兴文县| 宾川县| 巧家县| 平原县| 长垣县| 渝北区| 大丰市| 阿鲁科尔沁旗| 平顶山市| 普陀区| 喀喇沁旗| 梧州市| 岳西县|