Adder or Northern Viper (Vipera berus). Close up, identifiy, markings, ‘V’ on rear of head, zig-zag body length, upright, eye pupil, keeled scales,

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Adder or Northern Viper (Vipera berus). Close up, identification, features, typical, head, markings, ‘V’ on rear of head, vertical, upright, in daylight, pupil, red, orange iris, irid, body scales, keeled, dorsal, back, ‘Zig-zag’ marking full length. At rest, thermoregulation, food digestion.

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Size: 4480px × 6720px
Photo credit: © Joe Blossom / Alamy / Afripics
License: Licensed
Model Released: No

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