Lizzy, left, and Jamal, pygmy hippopotamus eat chilled water melons at the Attica Zoological Park in Spata suburb, eastern Athens, Friday, Aug. 4, 2023. A large number of animals being fed frozen meals at the Attica Zoological Park outside the Greek capital Friday, as temperatures around the country touched 40C (104 degrees Fahrenheit) and were set to rise further, in the fourth heat wave in less than a month. (AP Photo/Thanassis Stavrakis)