Unfortunately, the spider to human – one of the worst of living creatures. However, people can’t avoid encounters with spiders. Because they are everywhere: in the woods, in the meadows, and in our homes. Wherever you are, as a rule, within a radius of meters away from you, there is at least one spider, albeit small, but predatory. After all, 38,000 species of spiders found on the ground – the predators, and some of these little predators are poisonous … Anyway, the most poisonous spider on the planet is Black Widow spider, whose venom is 15 times more potent than the venom of a rattlesnake. And without medical care a bitten person dies within a few days. Besides, poisonous Black widow spider is fatal to horses and even camels.
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Pieridae White Butterfly belongs to a large family of butterflies, usually with white wings and yellow, orange and black spots. However, it would be wrong to think that all Pieridae butterflies are white. And even more diverse and bright colors have tropical species of white butterflies, where many forms become almost black, while retaining some bright spots. Their caterpillars live on various fruit trees, berry bushes, and vegetables, eating their leaves. Interestingly, the name of the butterflies often corresponds to the plants on which butterflies can lay eggs, for example Aporia Crataegi, cabbage butterfly, Pieris rapae, green-veined white, etc. The pigments that give the distinct coloring to these butterflies are derived from waste products in the body and are a characteristic of this family. Meanwhile, White (light yellow) butterflies are found worldwide. In fact, the pattern and color of many species vary with sex and season. Besides, many of the green, slender larvae, most of which are covered with a short down, or pile, are pests of garden crops.
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The importance of color in the underwater world is great. Today science is discovering how fish perceive differences of color and what sort of messages the colors convey. Fish use color to communicate with others of their species. They also use color in mating rituals and even to hide from their prey. Color is also a warning sign, it helps keep possible attackers away, and defend territory during mating season.

Emperor Angelfish (Pomacanthus imperator) comes in various sizes and colors. When young, it has blue and white spirals, but it develops its own appearance when it reaches maturity. Its white stripes on a blue background form concentric rings, and they grow just enough to give the adult fish magnificent horizontal yellow stripes. This helps to find a mate and define its territory.
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An amazing thing, but there are a number of opinions that the blue jay is a deceiver by nature in all senses. It, they say, is not even blue! Those who held it in hands, note that the characteristic blue outflow of its feathers is due only to their refractive internal structure. If the feather drops out, there is no blue color in sight.
In American culture, the character is quite well-known and in general its reputation is bad enough. In southern African-American folklore there is a mention that this bird is the messenger of the devil himself! According to belief, you can’t find Blue jay on Friday, because it fuels the furnace of Hell. And on Saturday it sings happily, because the furnace of Hell is ready and the bird returns for our souls.
Mark Twain mentions the blue jay in the book “Jim Baker’s Blue-jay Yarn” and also not very flattering about this bird. The character of the book, Jim Baker, argues that jays are birds simply because they wear feathers and do not go to church, and so they are very similar to people, evil devils and liars, all this way.
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According to the eastern or Chinese horoscope, the main symbol of 2017 will be the element of fire, which is a five-year cycle of the elements – Fire, Water, Air, Wood, Metal. Fire is a strong element, and it is best to handle it gently and carefully, in this case it will bring all the good owns. The main colors of 2017 are all related to the fire – red and orange, as well as all sorts of shades of these colors.
Also, the year belongs to one of the five elements, which also interact with each other – harmonize and complement, or are in conflict and repression. And If you know in advance the nature of the coming year of the Rooster, its characters and the nature, and, of course, its color, you can already plan the gifts for the year of the Rooster, dishes for New Year’s table, and advance understanding your horoscope in the new Year of the Rooster.
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Heron is an amazing long-legged bird. It typically can be found in ponds, marshes, and swamps. Herons feed while standing or walking in shallow water. They live nearly all over the world, except in Antarctica and arctic North America and Eurasia. There are about 60 species of heron. Several types are called egrets.
A heron is a tall bird with broad wings and a long neck. Its bill is long, straight, and pointed. These birds often have gray, brown, black, or white feathers.
Herons feed on fish, amphibians, snakes, small mammals, and other animals living in the shallow waters of wetlands. You know, herons stand in the water on one foot because the water is usually cold. Thus, they warm the feet one by one. It may stand on one leg motionless for several hours.
These birds typically build platform nests of sticks in trees, sometimes with many nests in a single, large tree. By the way, these birds are considered monogamous. But usually their relationship lasts for one season. As an exception, there are couples whose family life lasts two years or more.
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Silk is one of the most valuable and beautiful fabrics. It was highly appreciated a millennium ago, and our contemporaries are fond of it. You know, it is produced from threads extracted from the cocoon of silkworm. The length of one such thread from one cocoon can reach 800-100 meters!
Silkworms are actually caterpillars, not worms. They build cocoons to protect themselves while they change into a moth.
By the way, some spiders also make silk. They weave silk webs to catch insects. However, the silk made by spiders is too thin for making cloth.
To process silk, the cocoons are first put in hot water. This softens the cocoons so the silk can be unwound.
Silk was such an important product during ancient times that the major trade route between East Asia, West Asia, and Europe was called the Silk Roads.

Interesting facts
1. The production of 500 grams of silk requires about 3 thousand cocoons of silkworm. It takes 12 hours of work to make a skein of silk thread weighing 250 grams.
2. Silk thread has tremendous strength, it withstands strong pressure and is very strong at breaking. Not so long ago it was found out that 16 layers of silk withstand a bullet from the Magnum 357 (with a lead core).
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