Alan Williams / Beaver Bridge over River Conwy, near Betws-y-Coed, Snowdonia National Park, North Wales, UK, September 2018
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David Woodfall / European beaver (Castor fiber) rear view in wetlands, in captive breeding programme .Bevis Trust, Carmarthenshire, Wales, UK, May.
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David Woodfall / European Beaver (Castor fiber) amongst Pondweed (Potomogeton natans) in freshwater lake Bevis Trust, Carmarthenshire, Wales, UK, June.
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Nick Hawkins / Underneath view of a North American beaver (Castor canadensis) swimming under the ice of a frozen river. Quebec, Canada. October.
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Suzi Eszterhas / North American beaver (Castor canadensis) on dam. Martinez, California, USA. June.
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Sven Zacek / Beaver (Castor fiber) felling a Birch (Betula sp) tree for winter supplies. Tartumaa, Southern Estonia. November.
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Sven Zacek / Eurasian beaver (Castor fiber) with Willow (Salix sp) branch for winter stockpile. Near Suur Emajogi River, Tartumaa, Southern Estonia. January.
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Sven Zacek / Eurasian beaver (Castor fiber) on ice besides reeds in Emajogi River, Tartumaa, Southern Estonia. January.
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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.
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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.