据中国动物园协会2月26日消息，中方赴美大熊猫专家组抵达孟菲斯动物园后与美方专家，共同完成了对大熊猫“乐乐”的尸体解剖检查，初步判定心脏病变是其死亡原因。

According to a media release from the Chinese Association of Zoological Gardens on Feb 26, giant panda Le Le, who died early this month in the Memphis Zoo in the United States, may have succumbed to heart disease, a joint autopsy by Chinese and US experts has showed.

两国专家的解剖排除了导致动物意外死亡的如肠扭转、主动脉破裂、肝脓肿破裂或大出血等常见病因。根据他们观察到的心脏病变，初步判定这是致其死亡的原因，但需要进一步的病理检测结果确认。

Experts of the two countries ruled out some common diseases that may have caused Le Le's death, such as intestinal twist, aortoclasia and ruptured pyogenic liver abscess. Based on the cardiac lesion they observed, the experts have preliminarily judged that this was what caused the death of the panda. But further pathological diagnose is still needed to confirm the cause.

“乐乐”出生于1998年。早在2003年，“乐乐”同雌性大熊猫“丫丫”一起抵达孟菲斯动物园开始旅美生涯，为促进中美两国大熊猫保护合作和人民友好交流发挥了重要的桥梁作用。去年12月，动物园宣布由于目前同中国动物园协会达成的租借协议即将到期，“乐乐”和“丫丫”计划在未来数月内返回中国。

Le Le, born in 1998, came to the Memphis zoo with a female giant panda, Ya Ya, in 2003. In December, the zoo said that the iconic duo would "make the journey back to China within the next few months" as the current giant panda loan agreement with the Chinese Association of Zoological Gardens was coming to an end.

然而，就在即将回国之际，“乐乐”突然离世。孟菲斯动物园一位不愿透露姓名的发言人在2月初的一份报告，这只雄性大熊猫于2月3日在睡梦中安详离世。

Le Le died just when he was to be sent back to China very soon. The male panda died in his sleep on Feb 3, Xinhua News Agency quoted an unnamed spokesperson from the Memphis Zoo in a report in early February.

此次专家组前往美国，不仅同美方共同开展“乐乐”的死亡原因调查，还现场察看了“丫丫”的健康状况，调阅了其体检报告和健康月报。评估认为，目前“丫丫”除皮肤病导致的毛发脱落外，食欲良好，粪便性状正常，体重稳定。专家组还就“丫丫”的被毛异常情况与孟菲斯园方进行了讨论，并就“丫丫”的饲养和护理向美方提出了建议和要求。

At the same time, the expert team inspected the health condition of the female giant panda, Ya Ya, and discussed with the Memphis Zoo about the abnormal condition of Ya Ya's hair and made suggestions for to local representatives on the breeding and care for the giant panda

乐乐”去世之后，国内对于“丫丫”归国的呼声越来越高。中美双方正在积极协调，办理有关手续，争取早日运输大熊猫“丫丫”回国。

China and the US are actively coordinating and handling relevant procedures to try to bring Ya Ya back to China at an early date.