Gerry Ellis / Orangutan (Pongo pygmaeus) mother and baby, Borneo

Doug Gimesy / Triage coordinator and Senior Forest and Wildlife Officer Abby Smith - sitting in a Royal Australian Airforce (RAAF) C-27J Spartan - holding a young koala (Phascolarctos cinereus) that was burnt in th...

Doug Gimesy / During an extreme heat-stress event where temperatures exceeded 40°C, Melbourne Zoo veterinarian Sarah Frith gives in-filed triage to a suffering young and Grey-headed Flying-fox (Pteropus polioce...

Doug Gimesy / During an extreme heat-stress event where temperatures exceeded 40°C at Melbourne's Yarra Bend Grey-headed Flying-fox colony, Melbourne Zoo veterinarian Sarah Frith (right) gives in-filed triage t...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed Flying-fox colony, where temperatures exceeded 40°C, Melbourne Zoo veterinarian Sarah Frith gives in-field triage to a suf...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed Flying-fox colony, where temperatures exceeded 40°C, Melbourne Zoo veterinarian Sarah Frith gives in-field triage to a suf...

Gerry Ellis / Orangutan (Pongo pygmaeus) young eating bark, Melbourne Zoo, Australia

Steven David Miller / Orchard butterfly {Papilio aegeus} on flowers and leaves, Melbourne zoo, Australia

Steven David Miller / Blue triangle butterfly (Graphium sarpedon) on leaves, Melbourne zoo, Australia, captive

Steven David Miller / Orchard butterfly {Papilio aegeus} on leaves, Melbourne zoo, Australia

Dave Watts / Sumatran Tiger {Panthera tigris} Captive, Melbourne Zoo, Australia, Endangered

Steven David Miller / Australian birdwing butterfly {Ornithoptera priamus} resting. Australia. Captive Melbourne Zoo