Lewis Jefferies / Red squirrel (Sciurus vulgaris) feeding on the ground in the Cairngorms National Park, Scotland, UK, June.
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Richard Hopkins / Field vole (Microtus agrestis) cleaning itself in nest before leaving, Gloucestershire, UK, April.
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Rose Summers / Eurasian beaver (Castor fiber) swimming over to a willow, it clambers on to a branch before beginning to feed on the surrounding leaves, Devon, England, UK.
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Brian Bevan / Harvest mouse (Micromys minutus) climbing down blackberries on branch, Bedfordshire, UK, September. Controlled conditions.
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Brian Bevan / Melanistic grey squirrel (Sciurus carolinensis) searching for, finding and eating chestnuts amongst autumn leaves, Bedfordshire, UK, October.
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John Cancalosi / Captive corn snake (Pantherophis guttatus) eating an Eastern chipmunk (Eutamias sp.). The chipmunk was found dead and fed to the captive snake. North America.
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Dave Bevan / Eurasian beaver (Castor fiber) scratching before jumping into the water, alarmed, Ceredigion, Wales, UK, July.
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Nick Upton / Male Eurasian beaver (Castor fiber) grazing at dusk, River Otter, Devon, England, UK, June.
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Nick Upton / Tilt shot of a dam constructed by Eurasian beavers (Castor fiber) on a section of the River Otter, Devon, England, UK, June 2018.
Kerstin Hinze / Black-bellied hamster (Cricetus cricetus) feeding on yew fruits (Taxus baccata), Vienna, Austria, October.
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Dave Bevan / Harvest mouse (Micromys minutus) climbing on corn stalks, UK, July. Captive.
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Dave Bevan / Harvest mouse (Micromys minutus) climbing a Thistle (Cirsium), UK, July. Captive.
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Dave Bevan / Harvest mouse (Micromys minutus) grooming, sitting on a wheat seedhead, UK, July. Captive.
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Dave Bevan / Harvest mouse (Micromys minutus) climbing up and chewing on a thistle (Cirsium) stem, UK, July. Captive.
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Dave Bevan / Beaver (Castor fiber) swimming across a pond, reintoduced by the Welsh Beaver Project, Carmarthenshire, Wales, UK, June.
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Remi Masson / European beaver (Castor fiber) eating branches in the water before approaching the camera, River Rhone, Rhone-Alpes, France, June.
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Remi Masson / Tracking shot of a Eurasian beaver (Castor fiber) swimming underwater, turns to look at camera, River Rhone, Rhone-Alpes, France, June.
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Dave Bevan / Juvenile Brown rats (Rattus norvegicus) raiding a chicken nest in a barn, filmed at night using an infra red camera, Carmarthenshire, Wales, UK, December.
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Dave Bevan / Juvenile Brown rat (Rattus norvegicus) entering live trap and escaping, filmed at night using an infra red camera, Carmarthenshire, Wales, UK, November.
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Stephane Granzotto / Alpine marmot (Marmota marmota) standing alert outside burrow, takes fright and runs inside, Rhone-Alpes, France, July.
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Mick Jenner / Water vole (Arvicola amphibius) feeding on plastic, West Sussex, England, UK.
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Dave Bevan / Juvenile Brown rat (Rattus norvegicus) feeding on grain in a barn, filmed at night using infra red, Carmarthenshire, Wales, UK, October.
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Dave Bevan / Bank vole (Myodes glareolus) feeding from a bird feeder anlongside a Coal tit (Periparus ater) and Blue tit (Cyanistes caeruleus), Carmarthenshire, Wales, UK, September.
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Remi Masson / Eurasian beaver (Castor fiber) carrying branches back to lodge, dropping them when alarmed. River Rhone, Rhone-Alpes, France, June.
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Remi Masson / European beaver (Castor fiber) swimming underwater and urinating, River Rhone, Rhone-Alpes, France, June.
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Dave Bevan / Eastern grey squirrel (Sciurus, Carolinensis) entering top of a bird feeder, struggling to get out again, Carmarthenshire, Wales, UK, June.
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Terry Whittaker / Red squirrel (Sciurus vulgaris) leaping between Scots pine tree (Pinus sylvestris)s, lands on camera, Black Isle, Ross and Cromarty, Scotland, February.
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Nick Upton / Eurasian beaver (Castor fiber) adding a branch to its dam, Tayside, Scotland, UK, May. Filmed at night using a remote camera and infra red light.
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Nick Upton / Female Eurasian beaver (Castor fiber) and five kits feeding on a Willow (Salix) sapling, River Otter, Devon, England, UK, July. Part of Devon Wildlife Trust's Devon Beaver Trial.
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Terry Whittaker / Water vole (Arvicola amphibius) swimming underwater, dragging nesting material back to its burrow, Kent, England, UK. October.
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Terry Whittaker / Water vole (Arvicola amphibius) feeding on Yellow flag iris (Iris pseudacorus) seed pods, Kent, England, UK. October.
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Nick Upton / Two Eurasian beaver kits (Castor fiber) feeding at night, born in the wild on the River Otter as part of the River Otter Beaver Trial, Devon, England, UK, August 2015.
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SCOTLAND: The Big Picture / Red squirrel (Sciurus vulgaris) feeding, Scotland, UK, September 2011.
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Tony Phelps / Cape cobra (Naja nivea) emerging from a Cape gerbil (Gerbilliscus afra) burrow, hunting and smelling with its tongue, De Hoop Nature Reserve, Western Cape, South Africa, January.
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Tony Phelps / Cape cobra (Naja nivea) hunting, chasing a Cape gerbil (Gerbilliscus afra), De Hoop Nature Reserve, Western Cape, South Africa, December.
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Nick Upton / Male Eurasian beaver (Castor fiber) at night, feeding on a branch in a pond, Devon Wildlife Trust's Devon Beaver Project, Devon, UK, April.
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Nick Upton / Male Eurasian beaver (Castor fiber) at night, feeding on a branch in a pond, Devon Wildlife Trust's Devon Beaver Project, Devon, UK, April.
Nick Upton / Eurasian beaver (Castor fiber) at night, chewing bark and climbing along a felled tree, Devon Wildlife TrustŐs Devon Beaver Project enclosure, Devon, England, UK, March.
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Nick Upton / Eurasian beaver (Castor fiber) feeding on grass amongst Meadow buttercups (Ranunculus acris) near a pond in a large enclosure, Devon, England, UK, June. Captive.
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Peter Cairns / 2020VISION / Red squirrel (Sciurus vulgaris) feeding amongst flowering heather, Cairngorms National Park, Scotland, UK, October.
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Jabruson Motion / Boy collects African brush-tailed porcupine (Atherurus africanus) bushmeat and puts it in a bag, Lidjombo forest road near Dzanga-Ndoki National Park, Sangha-Mbaere Prefecture, Central African Republi...
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Terry Whittaker / 2020VISION / Water vole (Arvicola amphibius) eating, Kent, England, UK, July
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Terry Whittaker / 2020VISION / Two Water voles (Arvicola amphibius) eating, Kent, England, UK, July
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Terry Whittaker / 2020VISION / Water vole (Arvicola amphibius) eating, Kent, England, UK, July
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Mark Hamblin / 2020VISION / Red squirrel (Sciurus vulgaris) adult foraging around a woodland pool, Cairngorms NP, Scotland, UK, November 2011
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Joel Sartore / Photo Ark / Four-toed jerboa (Allactaga tetradactyla) hops forward, then out of frame, Plzen Zoo. Captive.