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 (Pteropus poliocephalus) colony, where temperatures exceeded 40°C, Grey-headed Flying-foxed (Pteropus poliocepha...

Doug Gimesy / 1554 recovered Grey-headed Fly-fox (Pteropus poliocephalus) carcases collected during a heat-stress at event at Melbourne's Yarra Bend Grey-headed Flying-fox colony - about one third of those estimate...

Doug Gimesy / Portrait of 1554 recovered Grey-headed Fly-fox (Pteropus poliocephalus) carcases collected during a heat-stress at event at Melbourne's Yarra Bend Grey-headed Flying-fox colony - about one third of th...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed Flying-fox (Pteropus poliocephalus) colony, where temperatures exceeded 43??in a desperate search for somewhere cooler and les...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed Flying-fox (Pteropus poliocephalus) colony, where temperatures exceeded 43°C, in a desperate search for somewhere cooler a...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed flying-fox (Pteropus poliocephalus) colony, where temperatures exceeded 43°C, Grey-headed flying-fox (Pteropus poliocepha...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed Flying-fox (Pteropus poliocephalus) colony, where temperatures exceeded 43°in a desperate search for somewhere cooler and...

Doug Gimesy / During an extreme heat-stress event at Melbourne's Yarra Bend Grey-headed flying-fox (Pteropus poliocephalus) colony, where temperatures exceeded 40°C, wildlife rescuer and carer Kate Chamber...

Doug Gimesy / Grey-headed Flying-fox (Pteropus poliocephalus) hanging dead in tree having succumbed to heat stress (like hundreds of others) on a very hot summer Melbourne day. Yarra Bend Park, Kew, Victoria, Austr...

Doug Gimesy / Wildlife rescuers examine the remains of a dead Grey-headed flying-foxes (Pteropus poliocephalus) that was recovered in the field during a heat stress event at the Melbourne colony that day. Yarra Ben...

Doug Gimesy / Grey-headed flying-fox (Pteropus poliocephalus) hanging suspended in a tree, dead, having succumbed to heat stress (like hundreds of others) on a very hot summer day. Yarra Bend Park, Kew, Victoria,...