請問why熊貓會瀕臨絕種??功課,十萬火急,唔該!!!!!

May 5
Mei Xiang has started to shred bamboo in Den Three. This activity is called “nest building” even though it only involves carrying a piece of bamboo to the den, shredding up part of the culm or stalk, and then sitting on it wherever it lands. As far as other behavior possibly related to pregnancy, Mei has left her carrots uneaten on a few occasions. For some reason known only to Mei, when her progesterone levels rise during pregnancy (or pseudopregnancy), carrots lose their appeal. Also, Mei has been choosing to rest indoors more frequently, often settling in for a long nap, when our plan was for her to shift back outside for bamboo.
Tai Shan last weighed in at 181 pounds on April 30. Tai is also into rearranging his bamboo. He will pick it up and carry it around the yard and sometimes even up in the trees. Perhaps a different hormone, testosterone, is behind his wanderings. We have a small study in progress to analyze hormones in fecal samples to learn about the earliest onset of maturation in our juvenile male panda. Just like the adults, Tai continues to eat up to about 40 pounds of bamboo culm each day. Yellow fibrous droppings are everywhere around the enclosures. Since they digest only 12 to 23 percent of what they eat, all three pandas have the keepers busy with both ends, going and coming!
Tian Tian gets the restless panda award. We continue to rotate yards and give him access to multiple yards to burn off energy. We give him several enrichment activities each day to help keep him occupied. He is an enrichment challenge. Tian still bleats endearingly for his keepers, and relishes our attention. These are cherished moments for the panda and his keepers.













圖片參考：http://nationalzoo.si.edu/animals/webcams/images/PandaCam.gif













其英文相關資料網如下：
http://animal.discovery.com/cams/pandavidr.html

數量很少(not a lot panda in world)
熊貓需要大量空間比佢地活動
近來中國發展得好快
好多土地都比人用左
佢地嘅空間自己少左
數量都會下降
(如果多就唔會叫國寶啦!)

對配偶要求很高(呢句我translate唔到,當參考啦)
它們要互love先會自然交配
仲有熊貓自然成功交配率低
(而家d熊貓bb都係用人工交配)

熊貓靠食大量竹葉為生(no food,number of bamboo decrease day by day)
而家d人大量斬樹
加上氣候開始變
d竹更加難生存

懷孕時間長(need a lot of time on conception)
繁殖能力低(panda can only give birth to one to two baby panda )

事先聲明
我唔知有冇gramma錯咖
盡人事咖咋