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European adder (Vipera berus)
제목: European adder (Vipera berus)
올린이: Axis (ground_assault_11@yahoo.com)
European adder.jpg
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European adder (Vipera berus)


The European adder is a venomous snake that is extremely widespread and can be found throughout most of Western Europe and as far as East Asia. The colour pattern of adders varies, ranging from very light-coloured specimens with small, incomplete, dark dorsal crossbars to entirely brown ones with faint or clear, darker brown markings, and on to melanistic individuals that are entirely dark and lack any apparent dorsal pattern. However, most have some kind of zigzag dorsal pattern down the entire length of their bodies and tails. The head usually has a distinctive dark V or X on the back. A dark streak runs from the eye to the neck and continues as a longitudinal series of spots along the flanks. Unusually for snakes, the sexes are possible to tell apart by the colour. Females are usually brownish in hue with dark-brown markings, the males are pure grey with black markings. The basal colour of males will often be slightly lighter than that of the females, making the black zigzag pattern stand out. Melanistic individuals are often females.

european adder
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