Jack Dykinga / Burrowing owl (Athene cunicularia), two huddled together. Marana, Pima County, Arizona, USA.

Guy Edwardes / Pulpit Rock, Isle of Portland, Dorset, England, UK. December 2010.

Wim van den Heever / Quiver Tree forest, (Aloe dichotoma) at dusk. Keetmanshoop, Namibia.

Pete Oxford / Konyak Naga boy peering out of house decorated with buffalo skulls, Konyak Naga headhunting Tribe.Mon district, Nagaland, North East India, October 2014.

Gabriel Rojo / Yatay palm / jelly palm (Batia yatay) trees silhouetted at sunset, El Palmar National Park, Entre Rios Province, Argentina

Juan Carlos Munoz / Quiver tree (Aloe dichotoma) Kokerboom Forest, Nieuwoudtville, Namaqualand, Northern Cape province, South Africa, September 2012.

Shattil & Rozinski / Juvenile American black bear (Ursus americanus), brown phase, standing upright and leaning on a car, Denver, Colorado, USA, July.

Kristel Richard / An Einsiedler / Swiss warmblood mare (Equus caballus) cantering, Schwyz, Switzerland, July.

Petra Wegner / Cavalier King Charles Spaniel, male puppy with tricolor coat , aged 3 months, at garden fence

Jane Burton / Baby Grey Squirrel (Sciurus carolinensis) 'kissing' a tabby kitten.

Mark Carwardine / Hands of a tourist leaning from boat to touch the mouth of a friendly Grey whale (Eschrichtius robustus) lying on the surface, San Ignacio Lagoon, Baja California, Mexico, April 2009

Mark Carwardine / Split-level of tourist in small boat leaning out to touch a Grey whale (Eschrichtius robustus) San Ignacio Lagoon, Baja California, Mexico, April 2009