The surviving baby panda born at Smithsonian's National Zoo is starting to show the black and white markings typical for pandas. According to keepers, the 10-day-old cub "looks great" and is healthy, active and nursing.

It had gained 27.9g in the previous 72 hours and and the zoo has announced that both this cub and the deceased twin were male. The baby pandas were fathered by the zoo's male giant panda, Tian Tian, using artificial insemination.

The cub's mother, Mei Xiang, ate for the first time on 31 August, giving panda cam watchers a good view of the baby while she was munching on sugar cane. The new arrival is still without a name because panda cubs are traditionally named when they are 100 days old.

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