Ernie Janes / Black howler (Alouatta caraya) male and female, captive, occurs in Brazil and Paraguay. With digitally added leaf pattern.

Jack Dykinga / Birdcage evening primrose (Oenothera deltoides) and desert golds (Geraea canescens) carpet the sandy washes beneath the Calumet Mountains, under the Milky Way. Mojave Trail National Monument, Mojave D...

Jack Dykinga / Birdcage evening primrose (Oenothera deltoides) and desert golds (Geraea canescens) carpet the sandy washes beneath the Calumet Mountains at dawn. Mojave Trail National Monument, Mojave Desert, Califo...

Ernie Janes / Black howler (Alouatta caraya) captive, occurs in South America.

Guy Edwardes / Gold Hill in winter, Shaftesbury, Dorset, England, UK. January 2010.

Jack Dykinga / Eroded salt laden sandstone 'fins' in incredible sculpted forms comprise an area know as 'Little Finland.' Gold Butte National Monument, Nevada, USA. President Barack Obama designated the monument on...

Jack Dykinga / Eroded salt laden sandstone 'fins' in incredible sculpted forms comprise an area know as 'Little Finland.' Gold Butte National Monument, Nevada, USA. President Barack Obama designated the monument on...

Jack Dykinga / Eroded salt laden sandstone 'fins' in incredible sculpted forms comprise an area know as 'Little Finland.' Gold Butte National Monument, Nevada, USA. President Barack Obama designated the monument on...

Jack Dykinga / Desert landscape with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. Anza-Borrego...

Jack Dykinga / Desert landscape at sunset, with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. An...

Jack Dykinga / Desert landscape with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. Anza-Borrego...

Jack Dykinga / Desert landscape with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. Anza-Borrego...

Jack Dykinga / 1563786 - - Desert landscape with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. An...

Jack Dykinga / Desert landscape with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. Anza-Borrego...

David Tipling / King penguins (Aptenodytes patagonicus) pair interacting, part of courtship, Gold Harbour South Georgia, January

Andy Rouse / Great crested grebe (Podiceps cristatus) swimming, backlit with morning light forming a bokeh affect on the water, Wales, UK, February. Highly commended in the Habitat Category of the BWPA (British W...

Floris van Breugel / Dune primrose, Sand verbena, and Desert gold emerge from the sand after brief spring rains in Anza-Borrego Desert State Park, California, USA March

Floris van Breugel / Dune primrose, Sand verbena, and Desert gold emerge from the sand after brief spring rains in Anza-Borrego Desert State Park, California, USA March

Peter Bassett / Male Southern elephant seal (Mirounga leonina) shifting position on a beach, surrounded by females, almost crushing a pup, Gold Harbour, South Georgia.Gold Harbour, South Georgia.

Dave Watts / Golden lion tamarin (Leontopithecus rosalia rosalia) captive in zoo. Occurs in Brazil.

Sven Zacek / Aerial view at sunrise of fog over bog forest, Tartumaa, Estonia, May 2013.

Andy Rouse / Mute Swan (Cygnus olor) courtship behaviour, Wales, UK, April.

Andy Rouse / Sunrise in forest, silhouetting trees. Ranthambhore Tiger Reserve, India.

George Sanker / North American river otter (Lontra canadensis) two in water with autumnal trees reflected in the water, Acadia National Park, Maine, USA, October.

Juan Manuel Borrero / Pearl cichlid (Geophagus brasiliensis) captive, occurs in Brazil and Uruguay.

Jurgen Freund / Blue and yellow fusiliers (Caesio teres) shoal, Great Barrier Reef, Queensland, Australia.

Ole Jorgen Liodden / Campbell albatross (Thalassarche impavida) in flight, silhouetted at sunset, near Campbell Islands, Sub-Antarctic New Zealand. February.

Klein & Hubert / Cheetah (Acinonyx jubatus) cubs, age three months, playing with their mother in golden light, Botswana.

Klein & Hubert / Cheetah (Acinonyx jubatus) cubs, age three months, playing with their mother in golden light, Botswana.

Klein & Hubert / Cheetah (Acinonyx jubatus) cubs, age three months, playing with their mother in golden light, Botswana.

David Pattyn / Great crested grebe (Podiceps cristatus) adult bird backlit with bokeh affect in foreground, The Netherlands.May 2014

David Pattyn / Great crested grebe (Podiceps cristatus) backlit adult bird at dawn. The Netherlands.May 2014

Juan Carlos Munoz / Black howler monkeys (Alouatta caraya) male and two females calling from tree, captive, Apenheul Park, Netherlands.

John Cancalosi / Cross-Section of Utah Septarian Nodule, Utah. A type of geode, Utah Septarian Nodules are found about 15 miles east of Zion National park. They were formed in an ancient sea floor during the Cretaceou...

David Tipling / Blue and Yellow Macaws (Ara ararauna) in flight, Tambopata Amazon, Peru

Paul Harcourt Davies / Spring Crocus (Crocus vernus) in flower in snow, Campo Imperatore, Gran Sasso, Appennines, Abruzzo, Italy, May

David Tipling / King Penguins (Aptenodytes patagonicus) on beach, Gold Harbour, South Georgia, November

David Tipling / King Penguin (Aptenodytes patagonicus) colony with chicks, Gold Harbour, South Georgia, November

Alex Hyde / Small Gold Grasshopper (Euthystira brachyptera) photographed on a white background. Aosta Valley, Monte Rosa Massif, Pennine Alps, Italy. July.

Floris van Breugel / Sub-alpine larches (Latrix sp.) in late autumn in North Cascades National Park, Washington, USA. October.

Andy Trowbridge / Sandfly Bay at sunrise. Otago Peninsula, Dunedin, South Island, New Zealand. January, 2012 taken with 'Blue-n-Gold Polariser'

Andy Trowbridge / Moeraki Boulder / Kaihinaki, on Koekohe Beach. 60 Million year old mudstone concretions. Moeraki, Waitaki District, Otago Region, South Island, New Zealand. January, 2012. Taken with Blue-n-Gold Polar...

Mark Hamblin / 2020VISION / Common beech (Fagus sylvatica) woodland in autumn, Cairngorms National Park, Scotland, UK, October. Did you know? More than 1.4 million people visit the Cairngorms each year.

Mark Hamblin / 2020VISION / Common beech (Fagus sylvatica) woodland in autumn, Cairngorms National Park, Scotland, UK, October

Paul D Stewart / Illustration of Giant Octopus (Octopus dofleini) attacking a ship, 1815 copperplate engraving from Bertuch's 'Bilderbuch fur kinder' 16 plate 5. with contemporary colour. 'Colosal Polypus' (octopus) a...

Jurgen Freund / Cultured Golden South Sea pearls of the Pearl oyster (Pinctada maxima) Jewelmer pearls, Philippines

John Cancalosi / Pyrite (FeS2, iron sulfide), known as 'Fool's Gold'. Formerly used in the production of sulfuric acid. Sample from Concepcion de Oro, Zacatecas State, Mexico.

Steve Nicholls / 360 degree panoramic photosphere of a Beech wood, Buckholt forest, Glos, UK