China News Service, Chengdu, July 18 (Reporter Yue Yitong Anyuan) The reporter learned from the China Giant Panda Conservation and Research Center (hereinafter referred to as the Center) on the 18th that from 18:44 to 19:34 on July 17, there were two babies and four babies. Giant panda babies were born one after another in the center of Wolong Shenshuping base.

　　At 10:8 am on the 17th, the returnee giant panda "Zhenzhen" began to exhibit low-frequency condemnation behaviors. The first cub gave birth at 18:44. The cubs had normal crying, vitality, and body temperature; they were born at 19:15. The second cub was examined by a childcare expert, and the second cub was male, weighing 120.7 grams.

　　The giant panda "Zhenzhen" was born in the San Diego Zoo in 2007 and returned to the center in 2010; in 2015, "Zhenzhen" gave birth to twins in Bifengxia, Ya'an; in 2018, "Zhenzhen" was introduced into the wild. Entering into the territory of Jinbo Village, Mianluo Town, Aba Prefecture, it aroused the attention of the villagers and made "Zhenzhen" a "net celebrity" of media attention at that time.

In order to participate in this year's breeding work, the giant panda "Zhenzhen" moved from the center Hetaoping base to Wolong Shenshuping base.

　　On the morning of the 17th, the giant panda "Susan" was always active. He acted at 14:41 and gave birth at 18:52. The cubs were vigorous and screamed loudly; they gave birth at 19:34. After the second cub was sent to the nursery room, after inspection, the second cub was female, weighing 165.9 grams.

　　Giant panda "Susan" was born in August 2011. His father "Bai Yang" and mother "Zhang Ka" are both from the wild.

In 2016, "Susan" gave birth to a giant panda baby in Bifengxia, Ya'an.

　　Beginning in February this year, the right-age giant pandas participating in the 2021 breeding plan have successively moved into the breeding center of the Shenshuping base in Wolong, and "Zhenzhen" and "Susan" completed natural mating at the end of February and March respectively.

At present, the eldest of the two pairs of twin giant pandas is raised by the "mother". The basic information is temporarily unknown. The second cubs are all raised artificially.

　　According to Li Guo, an expert in the management office of the Shenshuping Base in Wolong, the giant pandas "Zhenzhen" and "Susan" have rich production experience. The entire production process is relatively smooth. The two pairs of twins are attentive to the "mother" and the nursery experts. Under the care, all are in good physical condition.

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