Juergen Freund / Crate of Spectacled flying fox (Pteropus conspicillatus) babies just arrived by plane from Brisbane after months of care, ready to be returned to the Tolga Bat Hospital for release back to the wild, A...

Philippe Clement / Traditional Royal Mail red mailbox in the countryside at Coigach, Ross and Cromarty, Scottish Highlands, Scotland, UK, September 2016.

Kirkendall-Spring / Woman looking inside the mailbox on the summit of Mailbox Peak near North Bend, Washington, USA. March 2016. Model released.

Enrique Lopez-Tapia / Sign and box for volcano post, the only known post box on an active volcano. Mount Yasur, Tanna Island, Vanuatu, September 2008.

Sam Hobson / Fallow deer (Dama dama) beside bus stop and letterbox. London, UK. January.

LYNN M. STONE / Buff Wyandotte rooster perched on antique wooden egg case in grass beside rose bush. Calamus, Iowa, USA.

Wild Wonders of Europe / Geslin / Urban Red fox (Vulpes vulpes) sniffing newspaper hanging out of letter box, London, June 2009

Wild Wonders of Europe / Geslin / Urban Red fox (Vulpes vulpes) on doorstep with newspaper hanging out of letter box, London, June 2009

Terry Andrewartha / TTraditional red Telephone box and letter box, Norfolk, UK

Franco Banfi / Royal Mail post box inside the former British Base A, now a museum and post office at Port Lockroy, Goudier Island, Antarctic Peninsula, Antarctica.

Pal Hermansen / Mailbox beside bare trees. Akershus, Viken, Norway. April.

Pal Hermansen / Mailbox between bare trees. Akershus, Viken, Norway. April.

Doug Gimesy / Burnt out letter box on the Great Alpine Road which was burnt during the November / December 2019 fires. Great Alpine Road, Sarsfield, Victoria, Australia January, 2020. Editorial use only.