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Atlanta Zoo officials said on Friday that twin giant panda cubs, the first to be born and survive in the United States, have both turned out to be female.美國亞特蘭大動物園官員上周五表示，首對在美國出生和活下來的雙胞胎大熊貓幼崽其實都是雌性。

The zoo, which initially had identified both cubs as male after they were born in July, said DNA testing had now shown they are both female.雙胞胎大熊貓在七月出生時，動物園把兩只幼崽都鑒定為雄性，但現在根據DNA測試顯示它們都是雌性。

"Prior to the time they are at least 3 years old, there are no obvious external cues as to their sex." the zoo said in a statement.動物園在一份聲明中說：“熊貓在三歲之前，沒有顯著的外在特征來區分性別。”

Members of the public this fall helped choose the twins" names, Mei Lun and Mei Huan, which come from a Chinese idiom meaning "something indescribably beautiful and magnificent."今年秋天，市民幫忙給這對雙胞胎取名為“美輪”和“美奐”。這來源于一個中國成語，形容某物“宏偉美麗難以言表。”

The DNA tests showed a third panda, 3-year-old Po also initially believed to be male, is female as well. The male cub was named after the character voiced by Jack Black in “Kung Fu Panda.”DNA測試顯示，還有第三只熊貓的性別也搞錯了。2010年出生的三歲熊貓“阿寶” 原來被認為是雄性，其實也是雌性。當年這只熊貓幼崽就是以動畫片《功夫熊貓》中的角色阿寶命名的（杰克·布萊克配音）。

Po and the twin cubs were conceived through artificial insemination with the same set of parents.“阿寶”和這對雙胞胎幼崽是同一對熊貓夫婦通過人工授精孕育的。

Giant pandas are endangered and live only in a few mountain ranges in central China. An estimated 1,600 live in the wild and about 300 in captivity, mostly in China, zoo officials said.動物園官員說，瀕危動物大熊貓只生活于中國中部的部分山脈中。大概有1600只大熊貓生活在野外，還有大約300只圈養的大熊貓，大部分都在中國。