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Twin polar bear cubs unveiled at China zoo

December 29, 2011 12:00:00 AM PST
Twin polar bear cubs were unveiled in a zoo in northeastern China after they were born nine weeks ago.

One of the boy cubs has already developed a keen sense of curiosity, especially around cameras.

Their mother actually gave birth to another set of twins at the beginning of the year.

That set was a boy and girl, and they are doing well.

As for the twin boys, they should be walking in about a month.