Catherine, Duchess of Cambridge, holds Prince George as they visit the Bilby Enclosure at Sydney’s Taronga Zoo

Catherine, Duchess of Cambridge, holds Prince George as they visit the Bilby Enclosure at Sydney’s Taronga Zoo

Catherine, Duchess of Cambridge, holds Prince George as they visit the Bilby Enclosure at Sydney’s Taronga Zoo April 20, 2014. Britain’s Prince William 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 SOCIETY ENTERTAINMENT)