Why giant pandas around world have to return to China?
(WorldNews China)

Born and raised in the United States, Bao Bao, a 3-year-old giant panda, fails to become a U.S. citizen and has arrived in China on Wednesday. Unlike the U.S. citizenship policy for people, which stipulates that one becomes a U.S. citizen if he/she is born on the U.S. territory, the citizenship of giant pandas observes another policy. ......