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Edward Bagnall Poulton's 1890 book, The Colours of Animals, renamed Wallace's concept of warning colours "aposematic" coloration, as well as supporting Darwin's then unpopular theories of natural selection and sexual selection. [18] Poulton's explanations of coloration are emphatically Darwinian. For example, on aposematic coloration he wrote that
The reviewer, noting Wallace's different opinion, has no difficulty with Poulton's view of sexual selection, that it is "due to an aesthetic sense in the [female] animals", [11] and likes Poulton's expression that "Natural Selection is a qualifying examination which must be passed by all candidates for honours; Sexual Selection is an honours ...
According to Charles Darwin's 1859 theory of natural selection, features such as coloration evolved by providing individual animals with a reproductive advantage. For example, individuals with slightly better camouflage than others of the same species would, on average, leave more offspring.
Birds-of-paradise are even colorful in the dark, with feathers and body parts that glow a brilliant yellow-green under ultraviolet (UV) light, a new study found.
Coincident disruptive coloration is seen in other amphibians including the common frog, Rana temporaria, in which the dark and light bands that cross the body and hind legs coincide in the resting position, joining separate anatomical structures visually and breaking up and taking attention away from the body's actual outlines.
During an experiment in Cambridge over the seven years 2001–2007 Majerus noted the natural resting positions of peppered moths, and of the 135 moths examined over half were on tree branches, mostly on the lower half of the branch, 37% were on tree trunks, mostly on the north side, and only 12.6% were resting on or under twigs.
They come in all shapes and sizes. Some walk, some slither, some fly and some swim. Humans are blessed to share the planet with just over 2.1 million recognized species of animals. And scientists ...
As a natural history narrative on what has become an intensely researched experimental subject, [9] Adaptive Coloration could be thought obsolete, but instead, Peter Forbes observes "But Cott's book is still valuable today for its enormous range, for its passionate exposition of the theories of mimicry and camouflage". [7]