Ingo Arndt / Monarch butterflies (Danaus plexippus) flying in warmth of midday sun, overwintering colony in Michoacan, Mexico

Mike Potts / Echidna Gorge - the sun only gets into this very narrow slot canyon at midday, part of the Purnululu National Park (Bungle Bungles), Kimberly Region, Western Australia, July 2011

Ben Osborne / Aerial view of African elephants (Loxodonta africana) find shade under trees to avoid midday sun, during a drought. Northern Botswana. Taken on location for BBC Planet Earth series, October 2005

Bryan and Cherry Alexander / Moonlit iceberg taken at midday during the polar night, Northwest Greenland, 1980. 40 BELOW bookplate.

Solvin Zankl / The arrival of many Olive ridley sea turtles (Lepidochelys olivacea) at the beach of Ostional, Costa Rica, Pacific coast, at the beginning of an arribada (mass nesting event) November ^^^ Thousands an...

Angelo Gandolfi / Griffon Vultures (Gyps fulvus) soaring at midday on thermals, circling over Vadiello cliffs, Sierra de Guara, Aragon, Spain.

Tony Heald / Circle round the sun, optical effect of high level ice crystals, around midday, Chobe NP, Botswana

Jabruson / Silverback mature male Mountain Gorilla, Virunga NP, DR Congo (formerly Zaire) resting midday siesta

Robert Valentic / Cunningham's skink (Egernia cunninghami) basking at midday, Merri Creek on the northern fringe of metropolitan Melbourne, Victoria, Australia. October. Controlled conditions.

Nick Upton / Sheep (Ovis aries) sheltering from hot midday sunshine in a small limestone cave, Vegas de Sotres (or Vegas del Toro), near Sotres, Picos de Europa, Asturias, Spain, August 2016.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) in midday glow. Atka Bay, Antarctica. June.

Alain Dragesco-Joffe / Cheetah (Acinonyx jubatus) male resting in shade at midday, Tenere, Sahara, Niger,