Catherine, Duchess of Cambridge, Prince George and Prince William unveil a plaque for the new Bilby Enclosure at Sydney’s Taronga Zoo

Catherine, Duchess of Cambridge, Prince George and Prince William unveil a plaque for the new Bilby Enclosure at Sydney’s Taronga Zoo

Catherine, Duchess of Cambridge, Prince George and Prince William unveil a plaque for the new Bilby Enclosure at 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: ENTERTAINMENT SOCIETY ROYALS)