DUNSTABLE, ENGLAND - APRIL 11: Queen Elizabeth II and Prince Philip, Duke of Edinburgh feed Donna the elephant a banana as they visit the ZSL Whipsnade Zoo at the Elephant Centre on April 11, 2017 in Dunstable, United Kingdom. (Photo by Samir Hussein/WireImage)
DUNSTABLE, ENGLAND - APRIL 11: Queen Elizabeth II and Prince Philip, Duke of Edinburgh meet the Head Elephant Keeper during their visit of the Elephant Centre at the ZSL Whipsnade Zoo on April 11, 2017 in Dunstable, United Kingdom. The Queen and The Duke will 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)
DUNSTABLE, ENGLAND - APRIL 11: Queen Elizabeth II unveils a plaque as she opens the new Centre for Elephant Care at ZSL Whipsnade Zoo on April 11, 2017 in Dunstable, United Kingdom. (Photo by Karwai Tang/WireImage)
DUNSTABLE, ENGLAND - APRIL 11: Queen Elizabeth II smiles as she leaves after meeting residents during a visit to Priory View, an independent living scheme for older residents, in Dunstable on April 11, 2017 in Dunstable, United Kingdom. (Photo by Peter Nicholls - WPA Pool/Getty Images)
DUNSTABLE, ENGLAND - APRIL 11: Queen Elizabeth and Prince Philip (not pictured) arrive to view a flat belonging to Pauline Stainsby (L) during a visit to Priory View, an independent living scheme for older residents on April 11, 2017 in Dunstable, United Kingdom. (Photo by Peter Nicholls - WPA Pool/Getty Images)
