Catherine, Duchess of Cambridge, and Prince George visit the bilby enclosure at Taronga Zoo in Sydney in April 2014. William and Kate were on their first official trip overseas with their son. (Chris Jackson / Getty Images)
Prince William has a grip on an excited George, who seems to want to get hold of a bilby -- also called George -- at Taronga Zoo. (Chris Jackson/Getty Images)
Prince William, with Prince George, had his first visit to Australia with his own parents around age 1. (Chris Jackson / Getty Images)
The royal family gets a closer look at the Australian bilby. (David Gray / Associated Press)
Feeding giraffes at Taronga Zoo. It’s all part of being a royal. (Chris Jackson / Getty Images)
