Nick Garbutt / Aggregation / bloom / swarm of Moon Jellyfish (Aurelia aurita) in the clear waters of Loch Na Keal, off the Isle of Mull, north west Scotland, UK, June, Photographed through the surface.
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Doug Perrine / Bioluminescence from glowing plankton in sea tide line on beach, with stars above and ship lights on horizon, Vaadhoo Island, Raa Atoll, Maldives, Indian Ocean, October 2010
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Claudio Contreras / Californian sea lion (Zalophus californianus) swimming in Southern sea palm (Eisenia arborea) and Giant Kelp (Macrocystis pyrifera) forest, San Benitos Islands, Baja California Pacific Islands Biosphe...
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri) colony huddled together under the Southern Lights, Aurora australis, Atka Bay, Antarctica. September.
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Ernie Janes / Beech trees (Fagus sylvatica) at night in winter, with lamp post illuminating the woodland. Felbrigg Woods, Norfolk, England, UK. January.
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Ross Hoddinott / Marbled white butterfly (Melanargia galathea) resting among tall grasses and bathed in warm, early morning sunlight, Volehouse Moor, Devon, UK. July.
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Ross Hoddinott / Marbled white butterfly (Melanargia galathea) roosting among tall grasses at sunrise and bathed in warm, early morning sunlight, Volehouse Moor, Devon, UK. July.
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Claudio Contreras / Puente de Dios cascades, Tamasopo, Huasteca Region, Mexico, August
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Jack Dykinga / Aurora Borealis reflected in Polar Lake, conifers silhouetted at edge. Near Great Slave Lake, Northwest Territories, Canada. September 2018.
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Jack Dykinga / Aurora Borealis display above conifers and Polar Lake. Near Great Slave Lake, Northwest Territories, Canada. September 2018.
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Jack Dykinga / Aurora Borealis reflected in Polar Lake, wetland and conifers silhouetted along shore. Near Great Slave Lake, Northwest Territories, Canada. September 2018.
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Guy Edwardes / Sgwd Ddwli Uchaf, Brecon Beacons National Park, Wales. June 2013