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Adaptive Coloration in Animals is a 500-page textbook about camouflage, warning coloration and mimicry by the Cambridge zoologist Hugh Cott, first published during the Second World War in 1940; the book sold widely and made him famous.
Animal coloration, readily observable, soon provided strong and independent lines of evidence, from camouflage, mimicry and aposematism, that natural selection was indeed at work. [ 6 ] [ 7 ] [ 8 ] The historian of science Peter J. Bowler wrote that Darwin's theory "was also extended to the broader topics of protective resemblances and mimicry ...
In 1940, Hugh Cott wrote a compendious study of camouflage, mimicry, and aposematism, Adaptive Coloration in Animals. [6] By the 21st century, adaptation to life in cities had markedly reduced the antipredator responses of animals such as rats and pigeons; similar changes are observed in captive and domesticated animals. [79]
Warning coloration of the "Brazilian Skunk" in The Colours of Animals [P 5] The basic concept of warning coloration (aposematism, like the black and yellow pattern of a wasp) is approached very simply: When an animal possesses an unpleasant attribute, it is often to its advantage to advertise the fact as publicly as possible.
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Disruptive coloration by Hugh Cott, from Adaptive Coloration in Animals (1940) While trying to photograph a hen partridge on her nest, Cott waited for hours for the bird to return, finally taking some pictures of the empty nest before giving up. On developing the photographs, he realized the bird had been there all along, perfectly camouflaged ...
In his textbook Adaptive Coloration in Animals (1940), Hugh Bamford Cott describes self-decoration under the heading "adventitious concealing coloration", also naming it "adventitious resemblance". He describes it as a device "perhaps unrivalled" for effective concealment, and points out that it is brought about and depends on "highly ...
Misumena vatia - The color change from white to yellow (depending on the color of the flowers on which the spider is hunting) takes between 10 and 25 days; the reverse about six days. Chrysso venusta has been observed to rapidly change its color when disturbed. Some spiders, including Cyrtophora cicatrosa, can change colour rapidly. [9]