Neil Anderson / Red squirrel (Sciurus vulgaris), two curled up asleep in drey inside nest box. Nest of lichen and Pine needles. Highlands, Scotland, UK. Medium repro only.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri) chick aged six to eight weeks sheltering on parent's feet, portrait. Atka Bay, Antarctica. September.

Mark Taylor / Tabby kitten, Picasso, age 3 months, sleeping on a fluffy rug.

Nick Garbutt / Adult Helmet Vanga (Euryceros prevostii) incubating a clutch of 3 eggs. Nest constructed in the fork of a Bird's Nest Fern (Asplenium sp.) Masoala National Park, north east Madagascar.

Franco Banfi / Camp on beach at full moon, in Vrangel Bay where Bowhead whale (Balaena mysticetus) congregate during summer. Primorsky Krai, Russia. August 2019.

Juan Carlos Munoz / Coastal town of Saint-Jean-de-Luz, view across sea. Pyrenees Atlantiques, Nouvelle-Aquitaine, France. December 2014.

Ingo Arndt / Puma (Puma concolor) female and two cubs snuggling on hillside. Torres del Paine, Patagonia, Chile. July 2017.

Jack Dykinga / Burrowing owl (Athene cunicularia), five chicks huddled together, sleeping at burrow entrance in afternoon light. Marana, Arizona, USA. May.

Steven David Miller / Agile wallaby (Macropus agilis) female cleaning herself with joey squeezed into pouch. Nitmiluk National Park, Northern Territory, Australia.

Marie Lochman / Cosy Corner, Leeuwin-Naturaliste National Park, south west, Western Australia, March 2012

Suzi Eszterhas / Chinese pangolin (Manis pentadactyla), orphaned baby curled up in arms of research assistant. Taipei Zoo, Taipei, Taiwan. 2015. Captive.

Stefan Christmann / Emperor penguin (Aptenodytes forsteri), young chick on father's feet. Atka Bay, Antarctica. August.