Keepers at Prague Zoo have used tons of ice to give the animals some much-needed relief as yet another heat wave hit Europe. Polar bears Aleut and Gregor wasted no time and were rolling in the beds of ice cubes after entering their outside enclosure. The plan was to order ice for the animals in July and August (Petr David Josek/AP) (Petr David Josek/AP Photo/Petr David Josek)“The bears cool off with it and at the same time it’s an enrichment of their life in the zoo,” said zoo spokesperson Filip Masek. The zoo began providing ice to some of the animals two years ago (Petr David Josek/AP) (Petr David Josek/AP Photo/Petr David Josek)This year, the plan was to order ice for the animals in July and August, which are traditionally the hottest months. Climate change means the zoo has had to rethink summer care (Petr David Josek/AP) (Petr David Josek/AP Photo/Petr David Josek)Other animals that have benefited from the provision of ice to keep cool in previous years include otters, elephants and parrots.