Moth camouflage

Moth camouflage

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Caption: Moth camouflage. Two colours of peppered moth (Biston betularia) on the bark of a tree. These two forms, light (lower left) and dark (upper centre), are a famous example of natural selection. The light coloured form of the moth is most common in nature, providing camouflage, as here, on lichen-covered tree bark. In 1840s England, industrial pollution turned trees a sooty black. The darker moth (occurring as a genetic mutation) was better camouflaged on sooty trees, and within 50 years became the commonest form. The light moth was seen and preyed upon by birds. See image Z355/586 for the moths on a dark background.

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Keywords: animal, biston betularia, camouflage, genetic mutation, insect, insecta, invertebrate, invertebrates, light and dark, mimicry, moth, moth on bark, moths, natural selection, nature, on bark, on light tree, peppered moth, type, wildlife, zoology

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