Giant panda Shuangxin enjoys a meal at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Wang Yan)

Giant panda Hexing has fun at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Wang Yan)

Giant panda Shuangxin enjoys a meal at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Geng Huihuang)

Giant panda Shuangxin enjoys a meal at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Geng Huihuang)

Giant panda Shuangxin enjoys a meal at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Wang Yan)

Giant panda Shuangxin enjoys a meal at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Wang Yan)

Giant panda Shuangxin eats bamboo at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Wang Yan)

Giant panda Hexing has fun at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Wang Yan)

Giant panda Hexing has fun at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Geng Huihuang)

Giant panda Shuangxin enjoys a meal at the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Wang Yan)

Tourists visit the Xining Panda House in Xining, northwest China's Qinghai Province, July 28, 2024.

A special event was held on Sunday to celebrate the birthdays of giant pandas Shuangxin and Hexing at the Xining Panda House. (Xinhua/Geng Huihuang)

Editor: Zhang Zhou