Catherine, the Duchess of Cambridge (L), and her husband, Britain's Prince William (R), react as their son Prince George bites a small present that was given to him at the enclosure of an Australian animal called a bilby, which was named after the young prince, during a visit to Sydney's Taronga Zoo on April 20, 2014. Britain's Prince William, his wife Kate and their son Prince George are on a three-week tour of New Zealand and Australia. AFP PHOTO / POOL / David Gray (Photo credit should read DAVID GRAY/AFP via Getty Images)
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AFP DAVID GRAY