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The most preferred color in the world is blue. On aYugov's poll, pretty much, all the countries of the planet list it as such. In addition, it is delighted and intrigued by scientists and artists (see: PicassoBlue period) Similar for centuries and is a digital choice for everything, from the painting of the house tothe jeans you probably wear This minute. Yet it turns out that color is surprisingly difficult to come in nature.

Case in point:Animals come throughout the variety of colorsBut how much can you think of this is actually blue? Maybe the blue geai or the blue whale (which is not really all this blue anyway). Then there is the least common, but much more striking, creatures with bright blue colors, such as butterflies, frogs and parrots.

Why is blue so rare? Most pigments that animals expose on their fur, skin or feathers are related to the food they consume. Salmon is pink because ofthe pink crustaceans they eat. Goldfinches Get this yellow color of the yellow flowers they consume. But while pigments like red, brown, orange and yellow come from food animals eat, this is not the case with blue. In fact, this blue you see is not really a pigment at all.

When blue appears in nature, it is linked to other reasons than pigment. In many animals, this blue color is due to the structure of the molecules and the way they reflect the light. For example, theButterfly morpho blue (that you could recognize as the butterfly emoji), gets its color because its wing ladles are shaped in peaks that cause the sunlight to bend so that the blue light, just the length of right wave, renders it on our eye. If the ladders were shaped differently or if something other than the air filled the spaces between them, the blue would disappear.

The blue birds, such as the blue geau, get their color through a similar, but slightly different process: each feather is composed of microscopic beads in light, spaced in a way that anything but the blue light is canceled. The blue on any animal (including the blue eyes of humans) is due to a kind of reflection of light of this type. The only exception is theOboVina OliveWing Butterfly, which is the only known animal of nature that produces a blue pigment.

Why is blue color almost exclusively found in blue structures rather than pigments? Scientists can not say certainly, but a popular theory is that the development of a blue color has become beneficial (for survival and communication), it has been easier, from an evolutionary perspective, of These animals change the shapes of their body microscopically. than to rewrite the rules of chemistry.

A similar situation can be seen in plants, where the blue pigment does notreally to exist. According to David Lee, author ofPalette of nature: the science of the color of the plants and a retired professor at the Department of Biological Sciences of Florida International University in Miami,Less than 10% Of the 280,000 species of flowering plants produce blue flowers.

The plants that appear in blue are actually often used by a red pigment called anthocyanine. Through pH changes and a mixture of pigments, combined with the reflection of natural light, the plants are capable of generating the appearance of a natural blue color. This is the reason why plants such as bluebells, hydrangeas and morning glories appear various shades of blue, in reality, while Lee explains: "There is no real blue pigment in plants. " And for more fascinating information on the color wheel, here is30 crazy facts on the colors that will blow you.

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