Laurie Campbell / Adder (Vipera berus) close-up of male moving over rocks, Harthope Valley, Cheviot Hills, Northumberland National Park, England, May
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Russell Cooper / Adder (Vipera berus) female sunbathing, body flattened to absorb maximum amount of heat. Kent, UK.
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Chris Mattison / RF - Adder (Vipera berus) Big Moor, Peak District National Park. Derbyshire, UK, April. (This image may be licensed either as rights managed or royalty free.)
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Andy Sands / Adder (Vipera berus) young Adder basking on log with Birch leaves to show scale, West Sussex, England, UK, April
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Andy Sands / Adder (Vipera berus) young Adder basking on log with Birch leaves to show scale, West Sussex, England, UK, April
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Andy Sands / Adder (Vipera berus) young Adder basking on log with Birch leaves to show scale, West Sussex, England, UK, April
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Robin Chittenden / Adder (Vipera berus) Norfolk, UK March