Andy Rouse / Great crested grebe (Podiceps cristatus cristatus) courtship dance Cardiff, UK, March.
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David Pattyn / Little Grebe (Tachybaptus ruficollis) female sleeping with one of her 28 day chicks. The Netherlands, June.
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Peter Cairns / American Bison (Bison bison) walking through deep snow, Yellowstone National Park, Wyoming, USA, February.
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Mark Taylor / Tabby cat, Max, 5 months, with smoke black kitten.
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Pedro Narra / Bottlenose Dolphin (Tursiops truncatus) family swimming near the surface, Sado Estuary, Portugal
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Richard Du Toit / Aerial photograph of Southern Right Whale (Eubalaena australis) with white calf, near Cape Agulhas, South Africa, Southern Right Western Cape Province, Indian Ocean, August
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Jack Dykinga / Rain spattered inter-locking palm leaves create a design of pattern and colour in the tropical rainforest. Osa Peninsula, Costa Rica
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Petra Wegner,Petra Wegner / Golden Retriever, male in straw
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Anup Shah / Lion (Panthera leo) male nuzzling lioness, Masai Mara National Reserve, Kenya, July
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John Waters / Hand-reared Whooper Swans (Cygnus cygnus) being trained to fly alongside a car at Weson airfield by Lloyd and Rose Buck for filming purposes. Somerset, UK, January 2011.
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Ernie Janes / Border Collie, working dog looking through gate, Wales, UK
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Carol Walker / RF - Head portrait of black Andalusian mare and stallion meeting for the first time in Spain, Europe. (This image may be licensed either as rights managed or royalty free.)