Adder (Vipera berus). Male. Section of body showing keeled scales, colouring and dorsal zigzag markings which go from head to tail.
Adder or Northern Viper (Vipera berus). Close up of body showing keeled scales. One helpful feature as a guide to species identification. Male.
Size: 5341px × 3561px
Photo credit: © Joe Blossom / Alamy / Afripics
License: Licensed
Model Released: No
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