1 of 7 This black-capped squirrel monkey quickly adapted to the hot weather tucking into frozen berries and nuts at Chessington Zoo, Chessington World of Adventures, Surrey
2 of 7 A mud bath helped this warthog as he basked in the sun at Marwell Zoo, near Winchester, in Hampshire
3 of 7 At Marwell Zoo, near Winchester, in Hampshire, a Sulawesi Crested Macaque and her infants cooled off by sharing fruit ice cubes
4 of 7 A frozen fruit basket tied to a tree was a welcome treat for these two giraffes at London Zoo, in Regents Park
5 of 7 Imaginative keepers made a lollipop of berries and nuts to feed to Mjukuu, a four-year-old Lowland gorilla at Chessington Zoo, Chessington World of Adventures, Surrey
6 of 7 Staff at Whitehall Farm, in Northumberland, even smeared this baby pig in sun tan lotion to protect him from the searing heat
7 of 7 And more icy fruits kept chimpanzees Bonnie and Elvis happy as temperatures soared at Whipsnade Wild Animal Park, in Bedfordshire