日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

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: 日本黄页网站免费大全 | www.xx日本 | 蜜桃久久av| 久久综合色网 | 成人免费黄色 | 五月天视频网 | 日韩三级视频在线 | 韩国色片 | 午夜性刺激免费视频 | 影音先锋成人在线 | 国产免费一区二区三区最新不卡 | 色播五月综合 | 一区二区三区免费在线视频 | www.好了av.com | 欧美综合第一页 | 奇米影视亚洲春色 | 久久在草 | 中文字幕第7页 | 国产一区二区三区视频在线观看 | 女人18毛片一区二区三区 | 青春草在线免费观看 | 91大神在线免费观看 | 麻豆国产原创 | www超碰在线| 你懂的视频在线观看 | 日本欧美日韩 | 国产一区二区三区久久久 | 蜜桃av成人 | 色网址在线 | 午夜精品久久久久久久久久久久 | 一本综合久久 | 中文字幕精品一区二区精品 | 国产精品欧美激情 | 青草草在线视频 | 青青草社区 | 狠狠干欧美 | 在线观看一区视频 | www.99re7| 久久男人的天堂 | 麻豆av免费看 | 老色鬼av |