A giant panda on loan from China to Austria has given birth to two naturally conceived twins, an exceptionally rare event for the endangered species, Vienna's famous Schoenbrunn Zoo said Tuesday. Initially the zoo thought mother Yang Yang had only given birth to one panda because the delivery happened inside a dark nesting box and was only observed via an infrared camera. "The cubs have little round bellies and panda mummy Yang Yang is very relaxed," zoologist Eveline Dungl said.
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