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just after confirming the pregnancy, she gave birth three days later!

it is quite normal for such an outrageous thing to happen to our national treasure, the giant panda.

the hong kong special administrative region government announced on august 15 that ying ying, a female giant panda donated by the central government to hong kong, gave birth to a pair of twins, a boy and a girl, in the early hours of the same day after a gestation period of nearly five months.

photo: ocean park hong kong

at present, the panda brother and sister have successfully passed the critical "water collection period". their black "vests" and dark circles under their eyes are clearly visible. they are so cute!

on september 4, the younger brother of the giant panda twins. photo: gangbao pangda

after yingying gave birth to twins, a story posted by her breeder on a social media platform attracted a lot of attention:

after successfully mating with the male giant panda lele, yingying showed signs of pregnancy, including changes in appetite and behavior.it was not until three days before her due date on august 11 that experts confirmed through ultrasound that yingying was pregnant.。

hong kong ocean park has not announced the news of ying ying's pregnancy because they were worried about it being a false alarm.

giant pandas: the most troublesome "false pregnancy queen"

every year from july to august, many female giant pandas will show signs of sleeping, not eating, not being active, and even secreting milk, holding toys or bamboo as their cubs, looking like they are pregnant. however, it is very difficult to determine whether a female giant panda is pregnant.

first of all, the gestation period of female giant pandas is generally 120 to 150 days. because of the reproductive strategy of delayed embryo implantation, the gestation period between individuals is still very wide. the shortest recorded is 74 days, and the longest is 324 days. the first sign of pregnancy in a female giant panda is about 3 months after conception. before that, the giant panda embryo (fertilized egg) will wander in the female giant panda's uterus for many days and will not implant. this has become a difficult point in distinguishing true and false pregnancy.

in addition, because the embryo implanted too late and the fetus in the womb was too small, it was difficult for the staff to observe it with ultrasound.

generally speaking, an adult female giant panda can only detect a fetus in her belly a dozen days before giving birth. for some pregnant giant pandas, staff may not be able to truly determine whether they are pregnant until one or two days before giving birth.