http://www.digitaljournal.com/news/world/giant-panda-gives-birth-to-twins-at-record-23-years-old/article/499135

Giant panda gives birth to twins at record 23 years old

Posted Aug 3, 2017 by AFP
Zookeepers never expected the 23-year-old giant panda to give birth again when she was moved to a nature reserve in southwest China to live out the rest of her days.
A 23-year-old giant panda is equivalent in age to an 80-year-old human
A 23-year-old giant panda is equivalent in age to an 80-year-old human
Pedro Pardo, AFP/File

Zookeepers never expected the 23-year-old giant panda to give birth again when she was moved to a nature reserve in southwest China to live out the rest of her days.

But Haizi started showing interest in courtship this spring, resulting in a blind date with a male panda suitor and -- four months later -- twin cubs that have made her the world's oldest panda mom, China's Giant Panda Conservation and Research Center announced Thursday.

A 23-year-old giant panda is equivalent in age to an 80-year-old human.

According to the center, Haizi gave birth to a 175-gram (6 ounces) female and a 123.1-gram male on July 30 at southwest Sichuan province's Wolong National Nature Reserve, where 21 panda cubs have been born this year.

Haizi last delivered a pair of panda twins when she was 19 years old.

In Chinese culture, a set of boy-girl twins are called "dragon-phoenix babies."

"Generally, the maximum breeding age for giant pandas is 20 years old, and pandas older than that are not encouraged to participate in breeding," Li Desheng, a giant panda expert at the breeding center, said in a statement.

"But Haizi's success demonstrates the advanced degree of care offered at our center -- it is a breakthrough in panda breeding."