Karis, an eleven week old lion cub, plays in fallen leaves brushed up by keepers in her enclosure at Blair Drummond Safari Park, near Stirling, Scotland, on November 20, 2013. (Photo by Andrew Milligan/PA Wire)

Jack, a Lurcher from Dogs Trust Salisbury, walks past a window display of models in a Dogs Trust shop window in Salisbury, as part of a campaign to discourage the impulse buying of dogs ahead of Valentine's Day, on February 10, 2014. (Photo by Matt Alexander/PA Wire)

People socialising in Soho, central London on July 11, 2020, after the lifting of further coronavirus lockdown restrictions in England. Revellers are urged to remember the importance of social distancing as pubs gear up for the second weekend of trade since the lifting of lockdown measures. (Photo by Stefan Rousseau/PA Images via Getty Images)

A man dressed as Father Christmas learns how to use Zoom on a laptop in the grotto at Bamburgh castle in Northumberland, UK on November 3, 2020, it was due to open on November the 21st but due to the new national lockdown he will now be speaking to the children via Zoom on a computer. (Photo by Owen Humphreys/PA Images via Getty Images)

People take part in the Million Mask March anti-establishment protest at Trafalgar Square in London on November 5, 2020, on the first day of a four week national lockdown for England. (Photo by Aaron Chown/PA Images via Getty Images)

Gentoo penguins watching Christmas films at the Sea Life London aquarium on November 30, 2020. The attraction has installed two TVs, showing festive films, outside the penguin enclosure to prepare them for the stimulation of guests returning on Wednesday after the UK’s lockdown is lifted. (Photo by Yui Mok/PA Images via Getty Images)

Manchester City's Ellen White reacts after a missed chance during the Women's UEFA Champions League match at the Academy Stadium in Manchester, United Kingdom on December 16, 2020. (Photo by Martin Rickett/PA Images via Getty Images)

Winners of a competition enjoy a meal 450ft up on the roof of a central London skyscraper on August 21, 2018, as Deliveroo recreates “Lunch Atop a Skyscraper”, the photograph taken during the construction of the Rockefeller Center in New York City, 1932. (Photo by Jonathan Brady/PA Images via Getty Images)