Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with red dunes, and star trails, Namib desert, Sossusvlei, Namibia. Composite.
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John Cancalosi / American bullfrog (Lithobates catesbeianus) swimming near Water lilies (Nymphaea sp) Washington DC, USA. July.
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Alex Mustard / Plumose anemones (Metridium senile) and common starfish (Asterias rubens) beneath the sun in a Norwegian Fjord. Gulen, Bergen, Norway. North East Atlantic Ocean.
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Juan Carlos Munoz,Juan Carlos Munoz / Starfish Beach, with many starfish in the shallow sea (Asteroidea) Colon Island, Bocas del Toro Archipelago, Bocas del Toro Province, Panama,
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David Hall / Haig's porcelain crab (Porcellanella haigae) living commensally on Sea pen (Pennatulacea) Crab recently emerged from exoskeleton. Pantar, Alor Archipelago, Indonesia.
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Christophe Courteau / Stars Trails around the North Star, above sea and National Fort, Saint-Malo, Brittany, France.
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Chris Mattison / Common haircap moss (Polytrichum commune). Whitelye Common SSSI, Monmouthshire, Wales, UK. February.
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Nick Upton / Blue stonecrop (Sedum caeruleum) clump on limestone rock. Golgo Plateau, Gennargentu National Park, Baunei, Sardinia, Italy. May.
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Heather Angel / Morning glory (Ipomoea tricolor) flower with pollen grains scattered by visiting insects.
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Edwin Giesbers / White asphodel (Asphodelus albus) flowerhead. Cyprus. April.
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Edwin Giesbers / Star clover (Trifolium stellatum) flowers. Cyprus. April.
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Edwin Giesbers / Blue morning flower (Ipomoea indica) flowers and carpet of leaves. Cyprus. April.