Feature: Aussie National Zoo and Aquarium helps animal cool down in sweltering summer

Photo taken on Jan. 7, 2019 shows a tree kangaroo enjoying artificial mist to cool off at the National Zoo & Aquarium in Canberra, capital of Australia. As heat wave sweeps Canberra, the Australian National Zoo and Aquarium finds many ways to help animals prevent from the heat. (Xinhua/Pan Xiangyue)