Bernice Guillou November 27, 2019 Fruit
The main mechanisms to create the resemblances described by Poulton – whether in nature or in military applications – are crypts, blending into the background so as to become hard to see (this covers both special and general resemblance); disruptive patterning, using color and pattern to break up the animal’s outline, which relates mainly to general resemblance; mime sis, resembling other objects of no special interest to the observer, which relates to special resemblance; counter shading, using graded color to create the illusion of flatness, which relates mainly to general resemblance; and counter illumination, producing light to match the background, notably in some species of squid.
Pink, which is a mixture of red and white, physically affects us in a positive way. It is relaxing and warm. It is the only lighter shade of red with it’s own name. Other lighter colors are just light green or light blue. Pink is also psychologically a strong color. It represents the continuity of living beings as well as femininity. It has a deeply soothing effect. Too much pink could be tiring and oppressive. It is not suitable to use too much pink in the rooms of shy and introverted children as this is not an energetic color. It can lead to further withdrawal of this type of children. Pink with lesser undertones of red can be easily used in the rooms of active and energetic children. It evokes feelings of warmth and peace.
their upper sides seem to me to consist of a multitude of thin plated bodies, which are exceeding thin, and lie very close together, and thereby, like mother of Pearl shells, do not only reflect a very brisk light, but tinge that light in a most curious manner; and by means of various positions, in respect of the light, they reflect back now one colour, and then another, and those most vividly. Now, that these colours are only fantastical ones, that is, such as arise immediately from the refractions of the light, I found by this, that water wetting these colour, which seemed to proceed from the alteration of the reflection and refraction.
Red attracts all the attention and distorts the effect of other colors. The lens of the eye must adjust to be able to focus on red. The natural focal point is behind the retina. The dynamism of red is reduced as it turns into pink with the addition of white and gains softer and calmer undertones. For this reason, the use of red on the walls of children’s rooms must be avoided. Due to its strong and warm effect red could be used as an accent in children’s rooms fashioned in beige, blue and brown. Using intense red in the room of your child who uses it to study, play with his/her friends and sleep in, could have a negative effect on your child. Children could feel themselves tense and aggressive in rooms painted in intense red.
When cephalopod molluscs like squid and cuttlefish find themselves against a light background, they contract many of their chromatography, concentrating the pigment into a smaller area, resulting in a pattern of tiny, dense, but widely spaced dots, appearing light. When they enter a darker environment, they allow their chromatography to expand, creating a pattern of larger dark spots, and making their bodies appear dark. Amphibians such as frogs have three kinds of star-shaped chromatophore cells in separate layers of their skin. The top layer contains ’phosphorescent’ with orange, red, or yellow pigments; the middle layer contains ’sophomores’ with a silvery light-reflecting pigment; while the bottom layer contains ’melanophores’ with dark melanin.
Chromatophores are special pigment-containing cells that may change their size, but more often retain their original size but allow the pigment within them to become redistributed, thus varying the color and pattern of the animal. Chromatophores may respond to hormonal and or neurobal control mechanisms, but direst responses to stimulation by visible light, UV-radiation, temperature, pH-changes, chemicals, etc. have also been documented. The voluntary control of chromatophores is known as metachrosis. For example, cuttlefish and chameleons can rapidly change their appearance, both for camouflage and for signalling, as Aristotle first noted over 2000 years ago
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