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Blue-pigmented organelles, known as "cyanosomes", exist in the chromatophores of at least two fish species, the mandarin fish and the picturesque dragonet. [42] More commonly, blueness in animals is a structural colouration; an optical interference effect induced by organized nanometre-sized scales or fibres.
This is an accepted version of this page This is the latest accepted revision, reviewed on 27 December 2024. Variety of the color blue For other uses, see Shades of Blue (disambiguation). "Shade of Blue" redirects here. For the song by Black Rebel Motorcycle Club, see Shade of Blue (song). For the R&B/funk band, see Shade of Blue (band). Blue Wavelength 440–490 nm Common connotations ...
Prussian blue pigment is significant since it was the first stable and relatively lightfast blue pigment to be widely used since the loss of knowledge regarding the synthesis of Egyptian blue. European painters had previously used a number of pigments such as indigo dye , smalt , and Tyrian purple , and the extremely expensive ultramarine made ...
Eye color is an inherited trait determined by multiple genes. [14] [15] These genes are sought by studying small changes in the genes themselves and in neighboring genes, called single-nucleotide polymorphisms or SNPs.
Egyptian blue was the first synthetic blue pigment. It was made from a mixture of silica, lime, copper, and an alkali. It was widely used in The Fourth Dynasty of ancient Egypt (c. 2613 to 2494 BC). [6] Egyptian blue is responsible for the blue colour seen very commonly in Egyptian faience.
A blue rose is a flower of the genus Rosa (family Rosaceae) that presents blue-to-violet pigmentation instead of the more common red, white, or yellow, through use of artificial means such as dyes. Blue roses are often used to symbolize mystery or the unattainable, [ 1 ] since they do not exist in nature because of genetic limitations.
CBS has not budged on the cancellation of Blue Bloods, and no information about a spinoff has been confirmed. So here's what we know: On December 6, "Entitlement" will aired in the regular 10 p.m ...
The blue whale (Balaenoptera musculus) is a marine mammal and a baleen whale.Reaching a maximum confirmed length of 29.9 m (98 ft) and weighing up to 199 t (196 long tons; 219 short tons), it is the largest animal known ever to have existed.