Milan Radisics / Aerial shot of Kudafljot glacial river flowing over black volcanic soil, Iceland, August 2018.
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Milan Radisics / Aerial shot of a confluence of three tributaries flowing over black sand at the mouth of the Affall River, Landeyjar area, Southern Iceland, August 2018.
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Jack Dykinga / Navajo Sandstone formations with striated lines of mineral deposits. Grand Staircase-Escalante National Monument, Utah
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Guy Edwardes / Landscape of Alpe di Siusi, Dolomites, Italy, March 2016.
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Nick Garbutt / Red-and-green macaw (Ara chloropterus) flock flying in front of clay lick. Heath River, Tambopata / Bahuaja-Sonene Reserves, Amazonia, Peru / Bolivia border.
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Yva Momatiuk & John Eastcott / Minden / Calcium tufa formations, Mono Lake, California
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Jim Brandenburg / American Bison (Bison bison) herd on prairie with quartz, Blue Mounds State Park, Minnesota
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Anup Shah / African elephants (Loxodonta africana) feeding on loose soil for its minerals, Maasai Mara National Reserve, Kenya. Taken with remote wide angle camera.
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Anup Shah / African elephants (Loxodonta africana) family herd feeding on loose soil for its minerals, with dramatic stormy skies behind, Maasai Mara National Reserve, Kenya. Taken with remote wide angle camera.
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Anup Shah / African elephants (Loxodonta africana) family herd feeding on loose soil for its minerals, with dramatic stormy skies behind, Maasai Mara National Reserve, Kenya. Taken with remote wide angle camera.
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Lucas Bustamante / Scarlet macaws (Ara macao) and Red and green macaws (Ara chloroptera) at clay lick close to the Tambopata river. Tambopata Reserve, Madre de Dios, Peru.
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Eric Baccega / Dallol hot spring with salt concretions coloured by sulphur, potassium and iron, Dallol Volcano, Danakil Depression, Ethiopia, March 2015.
