Gloger's rule

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Individuals of many species of insects, birds, and mammals are darkly pigmented in humid climates and lightly coloured in dry ones. This may well be a camouflage adaptation—moist habitats are usually well vegetated and tend to lack pale colours. There are many exceptions to this so-called rule. The rule was proposed in 1833 by the German zoologist Constantin Wilhelm Lambert Gloger (1803–63). See also Allen's rule; Bergmann's rule.

Subjects: Zoology and Animal Sciences — Ecology and Conservation.

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