Jack Dykinga / Saguaro Cactus (Carnegiea gigantea) with flower cluster emerging from the tip of its limb, Saguaro National Park, Arizona, USA.
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Emanuele Biggi / Land crab (Geosesarma sp.) which raids Pitcher plant (Nepenthes ampullaria) for prey, Sarawak, Borneo.
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Alex Mustard / RF - Bluestreak cleaner wrasse (Labroides dimidiatus) tending to Ribboned sweetlips (Plectorhinchus polytaenia). Yillet Kecil, Yillet Islands, Misool, Raja Ampat, West Papua, Indonesia. Tropical West...
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Ernie Janes / RF- Barley (Hordeum vulgare) field with Poppies (Papaver rhoeas) North Norfolk, UK, June. (This image may be licensed either as rights managed or royalty free.)
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Laurent Geslin / White stork (Ciconia ciconia) on street light at night, Strasbourg, France. April.
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Konrad Wothe / Tropical kingbird (Tyrannus melancholicus) female at nest on telephone pole, Tobago, West Indies.
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Kirkendall-Spring / Castle Geyser in Upper Geyser Basin, Yellowstone National Park, Wyoming, USA. September 2015.
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Georgette Douwma / RF - Sea whip or Gorgonian (Ellisella ceratophyta) on reef. West Papua, Indonesia. (This image may be licensed either as rights managed or royalty free.)
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Chadden Hunter / Cameraman, Ted Giffords, radios for help as an unexpected early winter storm descends on the team, the crew were working in an ice crevasse at the time, for the Mountains episode of the BBC tv series...
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Andrew Parkinson / Bengal tiger (Panthera tigris tigris) female juvenile, displaying aggressive behaviour towards its father, Bandhavgarh National Park, India. Endangered.
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Brian Bevan / European robin (Erithacus rubecula) feeding on frozen deer carcass in field, freezing to look ahead and then feeding again, Bedfordshire, UK.