Andy Rouse / Chinstrap penguin (Pygoscelis antarcticus) group on blue iceberg, Antarctica
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Floris van Breugel / Colorful layers of rock on the inside of Mount St Helens' crater, seen from the rim. Washington, USA. May 2013
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Chris Gomersall / 2020VISION / RSPB reserves staff scraping heath surface layer and litter at Dunwich Heath National Trust reserve, Suffolk, UK. This promotes a mosaic of new heather growth on the mature heath, while simultaneously...
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Orsolya Haarberg / Thin layer of ice viewed through a polarizing filter, Helgeland, Nordland, Norway.
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Jack Dykinga / Valle de la Luna, The Codillera de Sal, formed by layer upon layer of salt, sand and clay, creating strata that buckled with earth's crust and lined with sand dunes. Atacama Desert, Chile. April 2009
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Steven Kazlowski / Aerial view of Ringed seals (Phoca hispida) on multi-layer ice (freshwater pans formed over many years where salt is squeezed out of the ice) with exit hole underneath ocean, Chukchi Sea, 20 miles off...
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Steven Kazlowski / Bowhead whale (Balaena mysticetus) swimming amidst multi-layer ice (freshwater pans formed over many years where the salt is squeezed out of the ice) offshore from Point Barrow. Chukchi Sea, Arctic Al...
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Steven Kazlowski / Polar bear (Ursus maritimus) sow and cub walking on multi-layer ice (freshwater pans formed over the years where the salt is squeezed out of the ice) on the Chukchi Sea, off the National Petroleum Res...
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Steven Kazlowski / Polar bear (Ursus maritimus) sow and cub walking on multi-layer ice (freshwater pans formed over the years where the salt is squeezed out of the ice) on the Chukchi Sea, off the National Petroleum Res...
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Steven Kazlowski / Polar bear (Ursus maritimus) sow with cub walking on multi-layer ice (freshwater pans formed over the years where the salt is squeezed out of the ice) on the Chukchi Sea, off the National Petroleum Re...
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Tim Fitzharris / Sandstone striations and erosional features, Badlands National Park, South Dakota
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PREMAPHOTOS / Leaf cutting ants returning to nest carrying pieces of leaf (Atta cephalotes) tropical rainforest, Costa Rica
