The Queen and The Duke of Edinburgh visit ZSL Whipsnade Zoo

Queen Elizabeth II and Prince Philip, Duke of Edinburgh feed Donna, an Asian Elephant, as they visit the ZSL Whipsnade Zoo at the Elephant Centre on April 11, 2017 in Dunstable, United Kingdom. The Queen and The Duke will meet the Head Elephant Keeper and view the elephant team carrying out daily care tasks such as nail filing and mouth care. Her Majesty and His Royal Highness will meet the Centre's project team, including zookeepers and architects, in front of the elephant paddock before proceeding to the amphitheatre where The Queen will unveil a plaque to mark the formal opening of the Centre. The Queen and The Duke will view an elephant being fed and meet keepers and vets before departing. (Photo by Chris Jackson/Getty Images)