David Gallan / Superb lyrebird (Menura novaehollandiae) male bathing in dried up waterhole during drought, Tathra, New South Wales, Australia, December.

Joel Sartore / Photo Ark / Eurasian blue tit (Cyanistes caeruleus) juveniles calling, Cheshire Animals, Churton, UK. Controlled conditions.

Eric Baccega / Black breasted snake eagle (Circaetus pectoralis) perched on branch and looking around before taking flight and leaving frame, Masai Mara, Kenya.

Eric Baccega / Eastern white-bearded wildebeest (Connochaetes taurinus) jumping down cliff on bank of Mara River during migration, Masai Mara Game Reserve, Kenya.

Harry Collins / Elk (Cervus canadensis) bull bugling during the rut, Jasper National Park, Canada. September.

Andy Sands / Red mason bee (Osmia bicornis) pair courting. The male is standing on the back of a female. The male performs this behaviour to try and persuade the female to mate. Hertfordshire, England, UK. May.

Andres M. Dominguez / Eurasian jay (Garrulus glandarius) bathing in stagnant water. The animal flies off and out of the frame. Sierra de Grazalema Natural Park, Spain. May.

Andres M. Dominguez / Blue tit (Cyanistes caeruleus) bathing in a river before hopping onto a nearby branch and then leaving the frame, Sierra de Grazalema Natural Park, Spain. July.

Konrad Wothe / Chimpanzee (Pan troglodytes) sitting on a branch and looking around in the rain, Mahale Mountains National Park, Tanzania.

Konrad Wothe / Chimpanzee (Pan troglodytes) sitting on a branch and looking around in the rain, Mahale Mountains National Park, Tanzania.

Eric Baccega / Leopard (Panthera pardus) female panting and resting on an overhanging branch. The animal turns its head. South Luangwa National Park, Zambia.

Eric Baccega / Leopard (Panthera pardus) female panting and resting in a tree. The animal is being distrubed by a fly which causes the leopard's ear to twtich. South Luangwa National Park, Zambia.