One-year-old Chimpanzee Liwali plays with ice blocks at Taronga Zoo where keepers filled the ice blocks with the chimp's favourite foods in Sydney, Friday, November 20, 2015. With forecast temperatures expected reach above 40 celcius (104 Fahrenheit) zoo keepers placed the large ice blocks around the exhibit for the chimps to find when they came out for breakfast. (Photo by Rick Rycroft/AP Photo)
