Brent Stephenson / Three King penguins (Aptenodytes patagonicus) in light drizzle with a faint rainbow in the background, St Andrew's Bay, South Georgia, South Atlantic, January.
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Brent Stephenson / Southern royal albatross (Diomedea epomophora) flying low over the sea, off Stewart Island, New Zealand, November, Vulnerable species.
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Floris van Breugel / A hot spring in the West Thumb Geyser Basin, Yellowstone National Park, Wyoming. The colors are a result of thermophilic bacteria living in the hot springs. December 2010.
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SCOTLAND: The Big Picture / Amphipods (Amphipoda) living on a salp (Salpidae), Scotland, UK, July.
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Brent Stephenson / Large numbers of chinstrap penguins (Pygoscelis antarcticus) gather on the beach below their breeding colony Deception Island, South Shetland Islands, Antarctica, January.
Brent Stephenson / King penguin (Aptenodytes patagonicus) shaking itself, with brood patch visible, St Andrew's Bay, South Georgia, South Atlantic, January.
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Brent Stephenson / Leucistic Antarctic fur seal (Arctocephalus gazella) pup on rock, Elsehul, South Georgia, South Atlantic, January.
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Brent Stephenson / Young Jack Russell terrier running across a field carrying a blue ball in his mouth, Redbrook, Monmouthshire, Wales, UK, August.
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Brent Stephenson / Wheki / Rough tree fern (Dicksonia squarrosa) frond unfuling, Ulva Island, Stewart Island, New Zealand, November.
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Birgitte Wilms / Decorator Crab (Camposcia retusa) covers itself with sponges and other living organisms as camouflage, Papua New Guinea
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Edwin Giesbers / Ecotoxicologists sampling aquatic invertebrates in trial ditches exposed to thiacloprid, a neonicotinoid. Organisms found to be 2500 times more sensitive to the insecticide in the natural environment...