Edwin Giesbers / Wide angle close-up of two European grey wolves (Canis lupus), captive, Norway, February.
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XI ZHINONG / Grey Wolves (Canis lupus) hunting a wounded Tibetan wild ass (Equus kiang) Kekexili, Qinghai, China, December.
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Angelo Gandolfi / Maned Wolves (Chrysocyon brachyurus) at Santurio do Caraca, where they are fed, at night. Parque do Caraca, Minas Gerais, Brazil, October 2010.
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Edwin Giesbers / Two European grey wolves (Canis lupus) in woodland, captive, Norway, February.
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Edwin Giesbers / Three European grey wolves (Canis lupus), captive, Norway, February.
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Ben Cranke / Maned wolf (Chrysocyon brachyurus) searching for food, Piaui, Cerrado, Brazil, South America
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Ben Cranke / Maned wolf (Chrysocyon brachyurus) searching for food, Piaui, Cerrado, Brazil, South America
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Danny Green / Wolves (Canis lupus) sitting on a hillside in snow. Yellowstone, USA, February.
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XI ZHINONG / Grey wolf (Canis lupus) at a Tibetan antelope (Pantholops hodgsoni) carcass, Qinghai, China, December
