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Van Dyke's salamander
Van Dyke's salamander, ''Plethodon vandykei'', is a salamander in the order Caudata and the family Plethodontidae. Recently, the species has been used in research to find out about the geomorphic conditions in Washington.
== Description ==
Van Dyke's salamander grows up to 6.2 cm long, and has large parotid glands on either side of its head. This salamander usually has a dark-colored belly that may have white flecks across it. Several different colour patterns or "phases" have been observed; yellow/orange, rose/salmon pink, and yellow-striped with black sides. These differences in colouration are believed to be due to variations in the climate. The adult males' yellow throat markings are used in courtship. The species is most active at night when conditions are moist and above freezing.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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