George Sanker / North American river otter (Lontra canadensis) swimming with head above water. Acadia National Park, Maine, USA. November.
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George Sanker / North American river otter (Lontra canadensis) two in water with autumnal trees reflected in the water, Acadia National Park, Maine, USA, October.
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George Sanker / North American River Otter (Lontra canadensis) two swimming near the surface with autumn leaves reflected in water, Acadia National Park, Maine, USA, October.
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Mark Carwardine / Northern / North American river otter (Lontra canadensis) swimming, Captive, Slimbridge, Gloucestershire, UK, July
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Michael Quinton / North American River Otter (Lontra canadensis) on iced over river, Yellowstone National Park, Wyoming
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Nick Garbutt / North American river otter (Lutra canadiensis), two standing at edge of frozen Upper Yellowstone River, Hayden Valley, Yellowstone, USA. February.
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Danny Green / North American otter (Lontra canadensis) eating a fish, Yellowstone National Park, USA, February
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John Cancalosi / Three River otters (Lutra canadensis) rolling, scratching and grooming itself on a log, Wyoming, USA, July.
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John Cancalosi / River otter (Lutra canadensis) rolling, scratching and grooming itself on a log, Wyoming, USA, July.
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John Cancalosi / River otter (Lutra canadensis) feeding on a Cutthroat trout (Oncorhynchus clarkii), Wyoming, USA, July.
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John Cancalosi / River otter (Lutra canadensis) feeding on a Cutthroat trout (Oncorhynchus clarkii), Wyoming, USA, July.
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John Cancalosi / River otter (Lutra canadensis) feeding on Cutthroat trout (Oncorhynchus clarkii), Wyoming, USA, July.
