Panda Cub Celebrates 2nd Birthday

Images of Yun Zi from his first two years.

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San Diego Zoo
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San Diego Zoo
The baby doesn't look much like a panda when it is first born. This image was captured August 14, 2009.
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EFE
The zoo's panda camera captures the new panda cub born at San Diego Zoo.
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San Diego Zoo
Our first pics of the new baby captured September 1, 2009 via the zoo's pandacam.
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San Diego Zoo
Born at 2.8-pounds the cub gained weight quickly. This is the cub in early September.
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AP
This was Bai Yun's second male cub. In 1999, Bai Yun gave birth at the San Diego Zoo to the first surviving giant panda born in the United States. She has since given birth to cubs in 2003, 2005, 2007 and 2009.
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The sound of his squeals sent Mama Panda running in late September 2009.
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San Diego Zoo
The cub flexing the muscles in his arms as he lifted up his chest and head to take a look around during one of his weekly veterinary exams.
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During his weekly exam on Oct. 20, 2009 the new cub started holding up his head.
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San Diego Zoo
Thousands of people voted on the name through the zoo's website. The panda cub during his weekly exam on October 20, 2009 at the San Diego Zoo.
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San Diego Zoo
Yun Zi at 13 weeks showed off his strength during his weekly exam in November 2009 by pushing up on his front legs and struggling against the veterinarian who was checking his limbs.
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The cub certainly showed off his personality and his independence early. He let out his most ferocious bark when veterinarians tried to get his measurements.
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San Diego Zoo
A zookeeper tries to keep the cub still.
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The zoos baby panda is behaving like a fidgety toddler.
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ASSOCIATED PRESS
Yun Zi, the five-month-old panda cub plays in one of the panda exhibit areas at the San Diego Zoo Wednesday Jan. 6, 2010 in San Diego. (AP Photo/Lenny Ignelzi)
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AP
Yun Zi, the five-month-old panda cub, plays in one of the panda exhibit areas the day before he went on exhibit - Jan. 6, 2010.
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ASSOCIATED PRESS
Yun Zi, the five-month-old panda cub, hangs onto a limb while playing in one of the panda exhibit areas at the San Diego Zoo Wednesday Jan. 6. 2010 in San Diego. Yun Zi goes on display to the public tomorrow. (AP Photo/Lenny Ignelzi)
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ASSOCIATED PRESS
Yun Zi, the five-month-old panda cub, plays in one of the panda exhibit areas at the San Diego Zoo Wednesday Jan. 6, 2010 in San Diego. Yun Zi goes on display to the public tomorrow. (AP Photo/Lenny Ignelzi)
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NBC Universal
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Giant panda Yun Zi entertained himself atop a tree while his mother, Bai Yun, ate her bamboo in an adjacent exhibit at the San Diego Zoo. The 79-pound panda was well on the way to graduating from baby bear to independence as he reached a new milestone—18 months old.
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Getty Images
Any new panda captures the hearts of zoo visitors from all over the world.
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Asociación de Empresarios Mexicanos
The panda viewing exhibit is one of the most popular at the San Diego Zoo.
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