Birthday celebration held for giant panda cubs

CHENGDU, China

In Chinese tradition, babies and their families celebrate 100 days after birth to wish the baby a long and happy life. The 100 days have made a difference - some of the cubs are now more than 20 times their birth weight.

Many of the world's zoo pandas come from the same research center where the 14 cubs are housed, including those at the National Zoo in Washington.

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