Pit and Paule were the first pandas to be born in Germany and have become a star attraction at the capital’s zoo since they made their public debut in January.
They are on loan from China, as are their parents.
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The panda bear cubs climb in their enclosure during their first birthday (Michael Sohn/AP)
The cubs, who weighed less than seven ounces at birth, now each weigh about 62lbs.
Zookeepers brought the duo a frozen cake in the shape of the figure one, made out of beetroot juice, apples, sweet potatoes and bamboo.
The creation was garnished with a portion of snow.
