The panda cub born at the San Diego Zoo nearly a month ago is a boy.
The zoo said the yet-to-be-named cub's mother briefly left the den Thursday, allowing veterinarians to examine the 2.8-pound baby panda for the first time.
Senior zoo veterinarian Geoff Pye says the cub is healthy and starting to show its black-and-white markings. He says the cub has reached its "initial cute stage" and is "very roly poly."
The cub born to 17-year-old Bai Yun (White Cloud) on Aug. 5 became just the 14th panda in the United States. It was her fifth club.
The cub's birth attracted so much traffic to the zoo's Web site that the online Panda Cam camera feed crashed. The zoo's blog also went down for a period.
It won't get a name for 100 days after its birth, in line with Chinese tradition.
The father is longtime consort Gao Gao (Big Big), who has fathered three of Bai Yun's other cubs.
The number of cubs makes the pair one of the most reproductively successful panda couples ever in captivity.
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