Female Koala Goonderrah climbs with her

考拉(MARIUS BECKER/AFP/Getty Images)

Female Koala Goonderrah climbs with her still nameless baby girl on her back in their enclosure at the zoo in Duisburg, western Germany, on December 21, 2011. The baby animal was born in May 2011 and has left her mother's pouch in the meantime. The zoo in Duisburg is the only zoo in Germany that keeps koalas. The first koalas arrived from the San?Diego Zoo in 1994 and over a dozen baby koalas have been successfully bred in Duisburg. AFP PHOTO / MARIUS BECKER GERMANY OUT (Photo credit should read MARIUS BECKER/AFP/Getty Images)