www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

US EUROPE AFRICA ASIA 中文
China / Society

Panda twin births boost the hopes for survival

By HUANG ZHILING (China Daily) Updated: 2016-08-04 02:02

Nine sets of giant panda twins have been born in Sichuan province so far this year, boosting confidence in the survival of the endangered species.

Panda twin births boost the hopes for survival

Newborn pandas play at a breeding center in Chengdu. SHE YI / FOR CHINA DAILY

Results of the fourth panda census, released last year by the State Forestry Administration, showed there were only 1,864 wild pandas and 375 captive ones worldwide at the end of 2013.

Pandas survive solely in six mountain ranges in China, five of which are in Sichuan.

On June 20, a panda at the Chengdu Research Base of Giant Panda Breeding in the province gave birth to two female cubs, the first newborn panda twins in the world this year.

“After they were born, another six pairs of cubs were born (at the base), with the last pair born on July 26,” base researcher Wu Kongju said.

On July 30, two cubs were born at the China Conservation and Research Center for the Giant Panda in Wenchuan county, Sichuan. The next day, another pair of cubs were born in its base in Ya’an, Sichuan.

Deputy center chief Zhang Guiquan said, “Pandas mate in spring and give birth in summer. As our center’s bases are in mountains where the temperature is lower, our pandas mate later than those in Chengdu.

“These four cubs were born after their mothers mated naturally,” he said.

It used to be difficult for captive pandas to mate, but this year’s births show that researchers have solved such problems.

The researchers initially did not know the pandas’ habits. Thinking that they preferred to live a solitary existence, they kept each panda isolated in a tiny den and fed the animals only bamboo.

The pandas became depressed and had difficulty in mating.

During studies that were started in 1992, the researchers placed pandas into dens occupied by the opposite sex so that they could get to know each other through smell.

Wild pandas search for the best bamboo that receives adequate sunshine and provides the best nutrition. Researchers cannot choose bamboo for captive pandas, but have created a biscuit rich in trace elements and vitamins.

Wild pandas are active for many hours each day. The researchers put the biscuits where captive pandas could not find them easily, getting the animals to move around.

“To make them play, we froze fruit before giving it to the captive pandas. They had to play with the fruit until it thawed if they wanted to eat,” said Zhang Hemin, chief of the China Conservation and Research Center for the Giant Panda.

Highlights
Hot Topics

...
主站蜘蛛池模板: 日本aaaaa毛片动漫 | www.日本高清视频.com | 一级特黄特色的免费大片视频 | 国产精品久久精品 | 亚洲欧美视频在线观看 | 欧美成人福利 | 久久国产视频网站 | 成年人免费观看的视频 | 暖暖免费高清日本一区二区三区 | 欧美国产合集在线视频 | 国产视频综合 | 91精品国产综合久久青草 | 亚洲精品毛片久久久久久久 | 免费视频99 | 亚洲人成人毛片无遮挡 | 国产欧美另类性视频 | 国产在线播放免费 | 美女扒开腿被男人猛视频 | 精品成人免费一区二区在线播放 | 奇米影视7777久久精品 | 怡红院爽妇网 | 成年人黄色网址 | 亚洲天堂色视频 | 国产美女精品一区二区三区 | 亚洲一区二区三区四区五区六区 | 国产三级做爰在线观看∵ | 91视频站| 免费国产成人手机在线观看 | 欧美日韩99| 成人久久18网站 | 国产精品久久久久无毒 | 国产一区二区三区精品视频 | 国产真实一区二区三区 | 欧美一区二区在线观看视频 | 亚洲最大网址 | 颜值超高的女神啪啪 | 国产精品亲子乱子伦xxxx裸 | 国产一区二区三区毛片 | 成人a在线观看 | 亚洲国产天堂久久综合图区 | 亚洲综合免费视频 |