Two of the one-month-old panda triplets await their turn for a body check at the Chimelong Safari Park in Guangzhou in south China's Guangdong province Thursday. The Associated Press

One-month-old Panda triples receive a body check at the Chimelong Safari Park in Guangzhou in south China's Guangdong province Thursday. China announced the birth of extremely rare panda triplets in a further success for the country's artificial breeding program. The three cubs were born July 29 in the southern city of Guangzhou.

One of the panda triplets receives a body check on Thursday.

One of the one-month-old panda triplets gets a health checkup by scientists at Chimelong Safari Park. The Associated Press

The panda triplets are only the fourth known to have been born in the world through artificial breeding programs. The Associated Press

At a month old, the cubs have developed most of the characteristic panda features. The Associated Press

A panda caretaker measures the neck of one of the triplets at the Chimelong Safari Park in Guangzhou, south China. The Associated Press

The triplets were born within four hours of each other on July 29. The Associated Press

Giant panda Ju Xiao caresses one of her triplet panda cubs in her cell at the Chimelong Safari Park in south China's Guangdong province in this Aug. 12, 2014, photo. The Associated Press

This Aug. 12, 2014, photo shows how the panda cubs looked two weeks after they were born. The Associated Press