Carol Walker / Lusitano horse, man training stallion in dressage steps, standing up on hind legs and then jumping in the air, Royal Riding School, Lisbon, Portugal, May 2011, model released
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Carol Walker / Spanish / Andalusian stallion performing Alta Escuela moves, rearing up, Andalucia, Spain
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Carol Walker / Wild Horses / mustangs, two stallions rearing up fighting, Pryor Mountains, Montana, USA, June
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Jeff Vanuga / McCullough Peaks wild horses (Equus caballus) rearing up against each other. Cody, Wyoming, July.
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Charlie Summers / Two Mustang (Equus caballus) stallions, a strawberry roan on the left and a black on the right, rearing and fighting for dominance, Pryor Mountain Range of Montana, USA
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Ernie Janes / Domestic beef cattle in winter rearing shed, Scotland, UK, November 2007
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Kristel Richard / Wild horse / mustang (Equus caballus) two young mustangs play-fighting in the Pryor Mountains, Wyoming, USA.
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Tony Heald / RF- Two Common zebra (Equus quagga) fighting, Etosha national park, Namibia. (This image may be licensed either as rights managed or royalty free.)
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Andrew Parkinson / Bengal Tiger (Panthera tigris), large six year old adult male rearing up to scratch off and eat bark, thought to soothe an upset stomach. Endangered. Bandhavgarh National Park, India. Non-ex.
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Andrew Parkinson / Bengal Tiger (Panthera tigris), large six year old adult male rearing up to scratch off and eat bark, thought to soothe an upset stomach. Endangered. Bandhavgarh National Park, India. Non-ex.
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Alex Mustard / Common reef / day octopuses (Octopus cyanea) courting. The male, on the right, is rearing up and showing his mouth and tentacles, while still maintaining contact with the female. This is a rarely seen...
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Carol Walker / Lusitano horse, two horses rearing up, watched by other horses at stud, Portugal, May 2011
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Carol Walker / Lusitano horse, man riding stallion in dressage steps, standing up on hind legs, Royal Riding School, Lisbon, Portugal, May 2011, model released
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Carol Walker / Lusitano horse, man riding stallion in dressage steps, standing up on hind legs, Royal Riding School, Lisbon, Portugal, May 2011, model released
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Carol Walker / Lusitano horse, man training stallion in dressage steps, standing up on hind legs and then jumping, Royal Riding School, Lisbon, Portugal, May 2011, model released
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Carol Walker / RF- Buckskin Andalusian stallion running. Ojai, California, USA. (This image may be licensed either as rights managed or royalty free.)
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Richard Du Toit / Burchell's Zebra (Equus burchellii) males fighting, Rietvlei Nature Reserve, Gauteng, South Africa
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Andy Rouse / RF- Two Common Zebra (Equus quagga) fighting. Masai Mara, Kenya. (This image may be licensed either as rights managed or royalty free.)
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Orsolya Haarberg / Two Chamois (Rupicapra rupicapra) in snow storm, one rearing up on hind legs, Gran Paradiso National Park, Alps, Italy, November
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Carol Walker / Wild Horses / mustangs, two stallions rearing up fighting, Pryor Mountains, Montana, USA, June
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Carol Walker / Wild Horses / mustangs, two stallions rearing up fighting, Pryor Mountains, Montana, USA, June
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Carol Walker / Wild Horses / mustangs, two stallions rearing up fighting, McCullough Peaks Herd Area, northern Wyoming, USA, August
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Carol Walker / Wild Horses / mustangs, two stallions fighting, rearing up, Adobe Town Herd Area, southwestern Wyoming, USA, July
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Charlie Summers / Wild Horses (Equus caballus) rearing up and fighting in dominance behaviour. Horses from different groups fight when they inevitably meet at waterholes. Namib-Naukluft National Park, Namibia, Septembe...
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Anup Shah / Impala (Aepyceros melampus) male rearing up on hind legs - wide angle perspective, Masai Mara National Reserve, Kenya. September 2009.
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Pete Oxford / South American River Turtle (Podocnemis expansa) and Yellow-spotted Amazon River Turtle (Podocnemis unifilis) yearlings in rearing program, Orinoco River, Apure, Venezuela
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Jane Burton / Toggenburg x Pygmy goat kid {Capra hircus} standing up on rear legs, UK
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Mark Moffett / Marauder Ant (Pheidologeton diversus) major worker rearing up over vanquished foreign ant of another species, that it has just killed
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Claus Meyer / Northern Coastal House Snake (Thamnodynastes strigilis) rearing up in defensive position, Caatinga ecosystem, Brazil
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Mark Moffett / Marauder Ant (Pheidologeton diversus) rearing up with open jaws in threat posture, guarding the trunk trail, southern India
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Pete Oxford / Chagra cowboy rearing up on his Domestic Horse (Equus caballus) near a large cross with Cotopaxi Volcano in the background at a hacienda in the Andes Mountains, Ecuador
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Pete Oxford / Chagra cowboy rearing up on his Domestic Horse (Equus caballus) near a large cross at a hacienda in the Andes Mountains, Ecuador