Diane McAllister,Diane McAllister / Japanese Macaque (Macaca fuscata) young one, appearing quite relaxed in thermal pool, even falling asleep, in Jigokudani, Japan, February

Nick Garbutt / Verreaux's sifaka lemur (Propithecus verreauxi) hanging in relaxed posture from a branch in the canopy, Berenty Private Reserve, southern Madagascar.

Aflo / Portrait of young boy lying down with Longhaired Dachshund

TOM MANGELSEN / Polar bears relaxing, Hudson Bay Canada

TOM MANGELSEN / Polar Bear resting on snow, Canada

Ashley Cooper / A walker relaxing at sunset, on Orrest Head above Windermere, Lake District UK. December 2012

Tony Wu / Sperm whales (Physeter macrocephalus) group of females moving slowly. Closed eye of the whale in the foreground, and the relaxed body language of all the animals indicates they are relaxing. Sri Lan...

Mark Taylor / Sandy rabbit lying stretched out and relaxed.

Peter Cairns / Polar bear (Ursos maritimus) rolling in the snow on ice floe, Svalbard, Norway, August.

Jean E. Roche / People on sun loungers on the beach during summer, Saintes Maries de la mer. Camargue, France. June 2013.

Loic Poidevin / Juvenile Grizzly bear (Ursus arctos horribilis) lying on a bed of moss, Khutzeymateen Grizzly Bear Sanctuary, British Columbia, Canada, June.

Philippe Clement / Jackdaw (Corvus monedula) perched on branch in relaxed posture with sleek feathers, Belgium, June.