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Structural coloration. The brilliant iridescent colors of the peacock's tail feathers are created by structural coloration, as first noted by Isaac Newton and Robert Hooke. Structural coloration in animals, and a few plants, is the production of colour by microscopically structured surfaces fine enough to interfere with visible light instead of ...
Color psychology is the study of colors and hues as a determinant of human behavior. Color influences perceptions that are not obvious, such as the taste of food. Colors have qualities that can cause certain emotions in people. [ 1] How color influences individuals may differ depending on age, gender, and culture. [ 2]
Bright coloration of orange elephant ear sponge, Agelas clathrodes signals its bitter taste to predators. Animal colouration is the general appearance of an animal resulting from the reflection or emission of light from its surfaces. Some animals are brightly coloured, while others are hard to see.
The plumage of the peacock increases its vulnerability to predators because it is a hindrance in flight, and it renders the bird conspicuous in general. [7] Similar examples are manifold, such as in birds of paradise [8] and argus pheasants. [citation needed] Another example of sexual dichromatism is that of nestling blue tits. Males are ...
Mate choice is a major component of sexual selection, another being intrasexual selection. Ideas on sexual selection were first introduced in 1871, by Charles Darwin, then expanded on by Ronald Fisher in 1915. At present, there are five sub mechanisms that explain how mate choice has evolved over time.
Unique hues. A concept of four unique hues of psychologist Charles Hubbard Judd (1917) Unique hue is a term used in perceptual psychology of color vision and generally applied to the purest hues of blue, green, yellow and red. The proponents of the opponent process theory believe that these hues cannot be described as a mixture of other hues ...
Signalling theory. By stotting (also called pronking), a springbok ( Antidorcas marsupialis) signals honestly to predators that it is young, fit, and not worth chasing. Within evolutionary biology, signalling theory is a body of theoretical work examining communication between individuals, both within species and across species.
Impossible color. The human eye's red-to-green and blue-to-yellow values of each one-wavelength visible color [citation needed] Human color sensation is defined by the sensitivity curves (shown here normalized) of the three kinds of cone cells: respectively the short-, medium- and long-wavelength types. Impossible colors are colors that do not ...