Giant pandas Yang Bang and Hai Bang at the Adventure World amusement park in Shirahama, Wakayama prefecture, Japan, June 4, 2017. [Photo/Xinhua]

Three giant pandas born and raised in Japan arrived in Chengdu in southwest China on Monday night, where they will begin a new life, and, hopefully, have offspring.

The panda twins and their younger sister had been living at Adventure World in Shirahama, Wakayama Prefecture.

The male-female twins, called Hai Bang and Yang Bang, were born on August 11, 2010, while their younger sister You Bang was born on August 10, 2012. The names are translated from Japanese names to Chinese, said Chengdu Research Base of Giant Panda Breeding, their new home.

The three pandas will return to the base on Tuesday. They will undergo a month-long quarantine and orientation period before meeting the public.

"They are expected to adapt to changes in food, environment, language, and even the taste of bamboo. We will perform health checks on the pandas," said Yang Zhi, a disease prevention expert with the base.

In 1994, the Chengdu base and the Japanese park started a panda breeding research program. Over the years, 15 pandas have been bred. Among them, eight have returned to China.

Cubs born to pandas that are "on loan" from China must be returned to China after they reach sexual maturity or when the cooperative agreement ends