Bao Bao (1978–2012) was one of the first two giant pandas in Germany and became – for a time – the oldest known panda in zoos. He was together with the female panda Tjen Tjen (who died in 1984) given to West Germany by China in 1980. Between 1991 and 1993 Bao Bao was loaned to London Zoo. In 1995, back in his Berlin home, another female named Yan Yan was sent on loan from China in an attempt to mate Bao Bao. In spite of several artificial insemination experiments there were no offspring. Yan Yan died in 2007. In summer 2017, giant pandas returned to Berlin, when Jiao Quing and Meng Meng arrived on breeding loan from China. In September 2019, Meng Meng gave birth to twin panda cubs.