Catherine, the Duchess of Cambridge watch as her son Prince George looks at an Australian animal called a Bilby during a visit to Sydney’s Taronga Zoo

Catherine, the Duchess of Cambridge watch as her son Prince George looks at an Australian animal called a Bilby during a visit to Sydney’s Taronga Zoo

Catherine, the Duchess of Cambridge watch as her son Prince George looks at an Australian animal called a Bilby, which has been named after the young Prince, during a visit to Sydney’s Taronga Zoo April 20, 2014. The Prince and his wife Kate are undertaking a 19-day official visit to New Zealand and Australia with their son George. REUTERS/Chris Jackson/Pool (AUSTRALIA – Tags: ROYALS POLITICS ENTERTAINMENT)