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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Shane Gross / Pelagic thresher shark (Alopias pelagicus) cleaned by a Bluestreak cleaner wrasse (Labroides dimidiatus) at Monad Shoal off Malapascua Island, Philippines.
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Shane Gross / Pelagic thresher shark (Alopias pelagicus) being cleaned by a bluestreak cleaner wrasse (Labroides dimidiatus) at Monad Shoal off Malapascua Island, Philippines.
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David Fleetham / Cleaner wrasse (Labroides dimidiatus) eating parasites off Coral grouper (Cephalopholis miniata) with Shrimp (Lysmata amboinensis) Mabul Island, Malaysia.
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Edwin Giesbers / RF - Banded darter (Sympetrum pedemontanum) group of five resting, Netherlands, September. (This image may be licensed either as rights managed or royalty free.)
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Adam Burton / Bluebells and beech trees in West Woods, Wiltshire, England, UK. May 2013.
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Phil Savoie / Radnor lily (Gagea bohemica) the rarest flower in the UK at sunset, Stanner Rocks National Nature Reserve, Powys, Wales, UK, February. Commended in the BWPA (British Wildlife Photography Awards) Compe...
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Chris & Monique Fallows / Impala (Aepyceros melampus) herd at dawn, Mana Pools National Park, Zimbabwe, October.
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Sandra Bartocha / European beech tree (Fagus sylvatica). in woodland, Serrahn, Muritz-National Park, World Natural Heritage site, Germany, Europe. October 2015.
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Sandra Bartocha / Sun rays shining through European beech woodland (Fagus sylvatica). Serrahn, Muritz-National Park, World Natural Heritage site, Germany, Europe. November 2015.
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Andy Rouse / Iceberg and mountain, Svalbard, Norway. Arctic. July.
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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...
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Matthew Maran / Landscape of London at dawn with fog from Hampstead Heath, London, England, UK. November 2014.
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Wim van den Heever / Lioness (Panthera leo) sitting during misty sunrise, Okavango Delta, Botswana.
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Wim van den Heever / Tranquil landscape with African elephant (Loxodonta africana) and rays of sunlight at sunrise, Masai Mara, Kenya.
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Andres M. Dominguez / Frozen Elmleaf blackberry (Rubus ulmifolius) in a small pond, Sierra de Grazalema Natural Park, southern Spain, January.
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Andres M. Dominguez / Mirror orchid (Ophrys speculum) in the Sierra de Grazalema Natural Park, El Bosque, southern Spain, April.
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Wim van den Heever / Quiver tree (Aloe dichotoma) with the Milky Way at night, and light pollution from town in the distance, Keetmanshoop, Namibia. Colours accentuated digitally.
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Wim van den Heever / Quiver tree (Aloe dichotoma) with the Milky Way at night, and light pollution from town in the distance, Keetmanshoop, Namibia. Colours accentuated digitally.
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Wim van den Heever / Quiver tree (Aloe dichotoma) with the Milky Way at night, and light pollution from town in the distance, Keetmanshoop, Namibia. Colours accentuated digitally.
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Wim van den Heever / Quiver trees (Aloe dichotoma) with the Milky Way at night, Keetmanshoop, Namibia. Colours accentuated digitally.
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Wim van den Heever / Quiver trees (Aloe dichotoma) with the Milky Way at night, Keetmanshoop, Namibia.
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Wim van den Heever / Quiver trees (Aloe dichotoma) with the Milky Way at night, Keetmanshoop, Namibia.
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Erlend Haarberg / Photographer silhouetted on Mt Luottotjakka overlooking the Arjep Luottojekna and Nuortap glaciers at sunset, Sarek National Park, World Heritage Laponia, Swedish Lapland, Sweden, August 2013.
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Claudio Contreras / Aerial view of Red mangrove (Rhizophora mangle) coastal lagoon, Sian Ka'an Biosphere Reserve, Caribbean Sea, Mexico, January
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Alex Hyde / Sheetweb weaving spider (Linyphiidae) in web at sunset. The silk is refracting the light into a rainbow of coloured bands. Slovenia, July.
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Wim van den Heever / Gemsbok (Oryx gazella) viewed from above, Namib Desert, Namibia.
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Wim van den Heever / Quiver tree forest (Aloe dichotoma) at night with stars and the milky way, Keetmanshoop, Namibia.
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Wim van den Heever / Quiver tree forest (Aloe dichotoma) at night with stars and the Milky Way, Keetmanshoop, Namibia.
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Alex Mustard / Harlequin sweetlips (Plectorhinchus chaetodonoides) cleaned by a pair of bluestreak cleaner wrasse (Labroides dimidiatus). South Atoll, Tubbataha Atolls, Tubbataha Reefs Natural Park, Palawan, Philipp...
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Sven Zacek / Hepatica (Hepatica nobilis) white morph and normal blue morph, Southern Estonia, April.
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Fabrice Cahez / Morning mist over the countryside, Aubrac, France, July 2015.
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Nick Garbutt / Madagascar sunset moth (Chrysiridia rhipheus) resting on tree. Masoala Peninsula, north east Madagascar. Controlled conditions.
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Constantinos Petrinos / Peacock Anemone (Anemone pavomina) with dew. Pink flower. Mount Hymettus, Kessariani Aesthetic Forest, East-Central Attica, Greece, March.
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Sven Zacek / Misty lake, with trees reflected in the water, and Willow (Salix) trees silhouetted on the shore, Suur Emajogi river, Tartumaa, Estonia, May 2014.
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Sven Zacek / Cross-country skiier on a moonlit night admiring the Northern Lights (Aurora borealis), Norway, March 2013.
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Pascal Pittorino / Ground beetle (Carabus hispanus) resting on a leaf of Hydrangea (Hydrangea sp), Lozere, Cevennes, Languedoc Roussillon, France, July.
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Richard Du Toit / Longtailed widowbird (Eupletes progne) male perched in flowers, Rietvlei Nature Reserve, South Africa.
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Juan Carlos Munoz / European beech forest (Fagus sylvatica) in autumn, view from below in the mist, Ilirska Bistrica, Green Karst, Slovenia, October.
Solvin Zankl / Portuguese Man-of-War (Physalia physalis) close up of tentacles, Sargasso Sea, Bermuda
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Ross Hoddinott / Ice on black volcanic sand beach with waves, Jokulsarlon, Southeast Iceland, February.
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Konrad Wothe / View up into canopy with sun rays shining through the leaves, lowland rainforest, Panguana Reserve, Huanuco province, Amazon basin, Peru.
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Danny Green / Japanese cranes (Grus japonensis) displaying in snow, Hokkaido, Japan, February
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Alex Hyde / Chlorophyte or green alga (Volvox aureus) in pond water. UK. The larger spheres are approximately 0.5mm in diameter. Digital composite image.