Firefighter from Melbourne's Metropolitan Fire Brigade (MBF) try and help cool down the Yarra Bend Grey-headed Flying-fox (Pteropus poliocephalus) colony by spraying water on them. Park Ranger and Grey-headed Flying-fox Project Officer Stephen Brend estimated that during this day, over 4,500 Grey-headed Flying-foxes died at the Melbourne Yarra Bend colony as temperatures exceeded 43°C. 56% being infants and a significant part of the next generation. Yarra Bend Park, Kew, Victoria, Australia. December 2019. Editorial use only.