Two giant pandas have given birth to male twins on Aug. 2 in the Chinese province of Sichuan. The latest panda births proves that the country's panda breeding program is working.

The Sichuan-based Chengdu panda breeding facility has successfully overseen around nine giant panda births, most of them twins.

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Panda Jingjing delivered the first cub at around 5:40 a.m. and his brother came out a little after 6:00 a.m. The first born tips the scale at around 172 grams, while the younger one is around 164 grams. This is Jingjing's first time to get pregnant and give birth.

Siyuan, another giant panda, also gave birth to male twins later that morning. The first panda was born at 11:12 a.m. and weighs around 174 grams. The younger cub was born at 11:30 a.m., but weighs heavier at around 180 grams.

Since its opening, the Sichuan facility has successfully delivered around 165 pandas, making it the biggest breeding ground giant pandas in the world.

Recently, another giant panda in Hong Kong known as Jiajia made it in the Guinness records after breaking two world titles.

Jiajia. the multiple Guinness world record holder, is thought to have been born in the late 1970s. Jiajia was brought to Hong Kong with a male mate in 1999. For the past 16 years, she has been staying in the island's Ocean Park.

Although Jiajia just turned 37, she is in fact 110 years old in human years. The giant panda is facing some age-related ailments, such as arthritis and high blood pressure. Despite Jiajia's ailments, her caretakers say the 78 kilogram panda's health is steady at the moment. Guinness officials believe Jiajia's good genes and the care given to her has kept her alive and well. They also believe that Jiajia's world record may be hard to beat by succeeding generations of pandas.

TagsGiant Panda, giant panda twins, 2 panda twins, sichuan panda, jiajia, chengdu panda, jingjing, siyuan, Panda cubs, panda population