Twin giant pandas celebrate second birthday in Austria

The twins were born in the summer of 2016. The cubs' father Long Hui died of tumor in December 2016. Yang Yang and Long Hui arrived in Austria in 2003 and they managed to breed five giant pandas naturally at the Schonbrunn Zoo.

In Europe, most pandas are bred through artificial insemination.

Under the contract signed between China and Austria, the offspring of Yang Yang and Long Hui should be returned to China after two years old. However, due to the hot summer, the twins are supposed to leave for China in autumn, a bit late than expected.