Millions of Britons are set to bask in a heatwave this week with weather maps showing that multiple areas of England could see temperatures go over 30C today. As well as advice being issued on how we can keep cool during the hot weather, rangers across animal parks and zoos are also putting measures in place to protect animals from the high temperatures. But with record temperatures expected this week, just how do zoos keep their cooler creatures, cold? GB News visited Yorkshire Wildlife Park, where their six polar bears were enjoying a vegetable ice block. “For polar bears, they do have quite…