Smithsonian's National Zoo releases footage of his short but successful stroll.
Scientists say they've figured out at least 13 different vocalizations used by the animals to express various emotions.
So far, so good, for twins born to mom Er Shun.
After years of trying, 10-year-old Ying Ying began to show signs of pregnancy in July and was due to give birth this week.
After years of trying, Hong Kong panda Ying Ying is finally expecting a cub.
The final necropsy results aren't complete, but the butter-stick-size panda likely died when fluid got into its lungs and caused inflammation.
The zoo staff got a great glimpse of giant panda Mei Xiang's surviving cub when she left him briefly to relieve herself.
If the National Zoo's firstborn panda cub hadn't died just five days after it was born, it would have been a fraternal twin to the surviving panda.
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