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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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.
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John Cancalosi / Two River otters (Lutra canadensis) resting on a log, one grooming and scratching itself, Wyoming, USA, July.
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John Cancalosi / River otter (Lutra canadensis) feeding on Cutthroat trout (Oncorhynchus clarkii), Wyoming, USA, July.
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John Cancalosi / River otter (Lutra canadensis) grooming and settling to rest, Wyoming, USA, July.
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John Cancalosi / River otter (Lutra canadensis) feeding on 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.
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George Sanker / North American river otter (Lontra canadensis) emerging from water, Acadia National Park, Maine, USA, October.
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Roger Powell / North American river otters (Lontra canadensis) family group with one of which has just caught a crab, Lower Suwannee River, Levy County, Florida, USA April
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Will Burrard-Lucas / North American river otter (Lontra canadensis), group exploring the banks of river. Grand Teton National Park, USA. May
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Edwin Giesbers / RF- North American river otter (Lutra canadensis) captive, occurs in North America.
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Edwin Giesbers / North American river otter (Lutra canadensis) captive, occurs in North America.
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Paul Hobson / North American river otter (Lontra canadensis) playing in snow, Yellowstone National Park, Wyoming, USA, February.
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Paul Hobson / North American river otter (Lontra canadensis) playing in snow, Yellowstone National Park, Wyoming, USA, February.
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Paul Hobson / North American river otter (Lontra canadensis) playing in snow, Yellowstone National Park, Wyoming, USA, February.
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Paul Hobson / North American river otter (Lontra canadensis) playing in snow, Yellowstone National Park, Wyoming, USA, February.
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George Sanker / North American River Otter (Lontra canadensis) on ice in a beaver pond. Acadia National Park, Maine, USA, November
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George Sanker / North American River Otters (Lontra canadensis) on ice in a beaver pond. Acadia National Park, Maine, USA, November
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George Sanker / North American River Otter (Lontra canadensis) looking up curiously in a beaver pond. Acadia National Park, Maine, USA, November
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David Kjaer / Three North American / Canadian Otters (Lutra canadensis) lying on each other by water. Captive, UK.
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Diane McAllister / Canadian river otter (Lutra canadensis) on a log enjoying its evening meal of a Cutthroat trout, starting at the tail. Trout Lake, Yellowstone National Park, Wyoming, USA, June
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Diane McAllister / Canadian river otter (Lutra canadensis) on a log enjoying its evening meal of a Cutthroat trout, starting at the tail. Trout Lake, Yellowstone National Park, Wyoming, USA, June. Winner of the Amateur...
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Brent Stephenson / Fully grown Northern River Otter (Lutra canadensis) pup swimming along the shoreline. Walker Cove, Alaska, United States, July.
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John Cancalosi / Canadian otter / North American river otter (Lontra / Lutra canadensis) feeding on a crayfish. Wyoming, USA, July 2010
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John Cancalosi / Canadian Otter (Lutra canadensis) in shallow river, hunting for fish, Wyoming, USA
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John Cancalosi / Canadian Otter (Lutra canadensis) licking a Lichen covered log over a river, Wyoming, USA
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John Cancalosi / Canadian Otter (Lutra canadensis) feeding on fish in river, Wyoming, USA
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John Cancalosi / Canadian Otter (Lutra canadensis) eating fish, Wyoming, USA
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John Cancalosi / Canadian Otter (Lutra canadensis) swimming in shallow river, hunting for fish, Wyoming, USA
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John Cancalosi / Canadian Otter (Lutra canadensis) portrait on river bank, Wyoming, USA
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John Cancalosi / Canadian Otter (Lutra canadensis) portrait standing in shallow river, Wyoming, USA
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John Cancalosi / Canadian Otter (Lutra canadensis) feeding on fish, on river bank, Wyoming, USA, July
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John Cancalosi / Canadian Otter (Lutra canadensis) swimming in shallow river, hunting for fish, Wyoming, USA
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John Cancalosi / Canadian Otter (Lutra canadensis) swimming in river, Wyoming, USA
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Patricio Robles Gil / North American river otter (Lutra canadensis) on frozen river near a waterfall, Yellowstone National Park, Wyoming, USA, February 2006
01201722
Matthew Maran / Canadian River Otter {Lutra canadensis} climbing through a hole to look for fish scraps on a moored fishing boat, Barkley Sound, Vancouver Island, BC, Canada
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Jeff Vanuga / Canadian / Northern River Otter (Lutra canadensis) on ice shelf in the Snake River, Wyoming, USA
01195625
Eric Baccega / Canadian otter (Lutra canadensis) diving, British Columbia, Canada
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Eric Baccega / Canadian otter (Lutra canadensis) diving, British Columbia, Canada
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Eric Baccega / Canadian otter (Lutra canadensis) diving, British Columbia, Canada
01185812
Colin Seddon / North American / Canadian otter {Lutra canadensis} swimming, UK captive
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Colin Seddon / North American / Canadian otter {Lutra canadensis} swimming, UK captive
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Colin Seddon / North American / Canadian otter {Lutra canadensis} 12-week cub and bitch, captive, UK
01171494
John Cancalosi / Canadian River Otter (Lutra canadensis) feeding on Cutthroat Trout (Oncorhynchus clarkii) Montana, USA
01171495
John Cancalosi / Canadian River Otter (Lutra canadensis) feeding on Cutthroat Trout (Oncorhynchus clarkii) Montana, USA
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Mary McDonald / Canadian otter feeding on fish (Lutra canadensis) captive
01166746
George McCarthy / Northern River Otter (Lutra canadensis) Yellowstone NP, Montana, USA
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George McCarthy / Northern river otters {Lutra canadensis} swimming in Snake River, Grand Teton NP, Wyoming, USA
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George McCarthy / Northern River Otter (Lutra canadensis) on the bank of the Madison River in Yellowstone NP, Montana, USA
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George McCarthy / Family group of Northern River Otters (Lutra canadensis) on the bank of the Madison River in Yellowstone NP, Montana, USA
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George McCarthy / Northern River Otter (Lutra canadensis) on the bank of the Madison River in Yellowstone NP, Montana, USA
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George McCarthy / Northern River Otter (Lutra canadensis) on the bank of the Madison River in Yellowstone NP. Montana, USA
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LYNN M. STONE / Canadian river otter {Lutra canadensis} USA
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Mary McDonald / Canadian river otter {Lutra canadensis} feeding on fish, Canada captive
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LYNN M. STONE / Canadian otter {Lutra canadensis} feeding on fish, USA
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LYNN M. STONE / Canadian otter (Lutra canadensis) beside river, Montana, USA
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TOM MANGELSEN / Canadian otters grooming on log (Lutra canadensis) Montana, USA.
01030366
TOM MANGELSEN / Canadian otter standing on ice (Lutra canadensis) Montana, USA.
01129669
Jeff Vanuga / River otter {Lutra canadensis} emerging from thermal hole in Yellowstone NP, USA.
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Colin Seddon / North American / Canadian otter {Lutra canadensis} portrait, UK
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Joel Sartore / Photo Ark / North American river otter (Lontra canadensis pacifica) portrait, Wildlife Center of the North Coast, Oregon, USA. Captive.
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Joel Sartore / Photo Ark / North American river otter (Lontra canadensis pacifica) portrait, Wildlife Center of the North Coast, Oregon, USA. Captive.
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Karine Aigner / A rescued baby North American river otter (Lontra canadensis) on white background, Florida, USA. Captive.
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Karine Aigner / A rescued baby North American river otter (Lontra canadensis) on white background, Florida, USA. Captive.
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Ernie Janes / RF - American river otter (Lontra canadensis) eating fish, captive, occurs in North America. (This image may be licensed either as rights managed or royalty free.)
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Ernie Janes / American river otter (Lontra canadensis) eating fish, captive, occurs in North America.
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Ernie Janes / American river otter (Lontra canadensis) captive, occurs in North AMerica.
01653611
Danny Green / North American river otter (Lontra canadensis) on back, rolling on snow bank. Yellowstone National Park, USA, January.
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Danny Green / North American river otter (Lontra canadensis) female and cub walking across snow, reflected in water. Yellowstone National Park, USA, January.
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Danny Green / North American river otter (Lontra canadensis) on snow covered bank, reflected in icy water. Yellowstone National Park, USA, January.
01640033
Nick Garbutt / North American river otters (Lutra canadiensis) probaly female with two juveniles, on the frozen river edge. Upper Yellowstone River, Hayden Valley, Yellowstone, USA. January
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Nick Garbutt / North American river otters (Lutra canadiensis) running on the frozen river edge. Upper Yellowstone River, Hayden Valley, Yellowstone, USA. January (stitched image)
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Nick Garbutt / North American river otter (Lutra canadensis) two on frozen river edge. Upper Yellowstone River, Hayden Valley, Yellowstone National Park, Wyoming, USA. January.