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Scorpios - representatives of what class

Many people are surprised to learn that scorpions are representatives of the class of arachnids. But it really is. Arachnids are a huge class, in which more than 35 thousand different species are united. Their representatives have both common characteristics and unique features. But it's about scorpions that I want to talk more about.

Some general information

All the common characteristics of arachnids are related to fitness for life on land. These are land arthropods, which have 6 pairs of legs, a trunk consisting of two divisions, and simple vision organs. Many species are completely devoid of eyes. Scorpions are representatives of a class whose respiratory system consists of lungs and trachea. The circulatory system has an unclosed circle, and the heart - the shape of the tube. Arachnids have a division into male and female sex.

A typical fallacy

The people formed the opinion that scorpions are representatives of the crustacean class. Misconception is so firmly entrenched in the mind that it is very difficult to convince an opponent. The thing is that there is some external similarity between scorpions and crustaceans, but people just do not want to go into the details of the structure. Such a delusion, expressed in an educated company, can put a person in an awkward position. That is why you should pay more attention to your education.

Scorpion squad: representatives and their distinctive features

The class of arachnids is divided into several separate orders:

  • Spiders;
  • Scorpions;
  • Mites;
  • And so on.

Scorpions are representatives of an atypical order of spiders. Usually scorpions are not very big. The maximum size is 20 cm. Their body consists not of two departments, but of three. In the front, there are a couple of large eyes, and a few pairs of small side vision organs. The trunk turns into a segmented tail, which ends with a poisonous gland.

The body of this arachnid is protected by a rigid cover. Optimal habitat - a warm climate. Inside the detachment there is an additional division. All scorpions are representatives of two subspecies: those who choose the wet habitat and live in dry places.

What does the scorpion eat

Mostly scorpions are representatives of nocturnal carnivorous insects. They lead the hunt for various spiders and millipedes. Smaller reptiles and young rodents can become more serious prey. In the absence of other prey, scorpions engage in combat with their own kind and engage in cannibalism. According to biologists, cannibalism allows this unit to survive in difficult conditions and spread widely around the world.

Reproduction

Outwardly, it is very difficult to distinguish a male and female. Scorpio refers to viviparous arachnid species. Each individual undergoes a direct development cycle without metamorphosis. At one time the female brings from 5 to 25 kids. Attitude to the offspring of this detachment is twofold. On the one hand, the scorpion female cares for the cubs and even wears them on her back. On the other hand, with a lack of food, one or two babies from the brood can eat.

The life span of insects varies from two to eight years.

Poison Scorpion

Scorpion venom is neurotoxic. It accumulates in the terminal pear-shaped segment of the tail. The direction of defeat depends on the type of scorpion. In some species, poison acts on insects, in others on mammals. The first kind of poison is not dangerous to humans, in fact it acts no stronger than the wasp venom. The second can paralyze the heart and pectoral muscles, which is deadly for a person.

25 species of scorpions are a danger to humans. Their bite can disrupt the coordination of movements, cause increased salivation and vomiting. The place of the bite swells, turns red, itches and painfully to the touch.

To determine how much the individual is poisonous, it is possible by appearance. In species that are dangerous to humans, the claws are smaller than the sting on the tail. If a scorpion is dangerous only for insects, then its claws are larger.

Introduction to individual species

One of the most common species is the yellow scorpion. He is not dangerous to humans. It feeds on small spiders and cockroaches. Dwells in Africa, the Middle East, India and Pakistan, the Arabian Peninsula.

Imperial and stone scorpions are often planted as pets. It is a very beautiful insect with large claws.

Of dangerous for humans species can be identified androktonusa. This arachnid can feed on mammals. A dangerous African desert scorpion is considered dangerous. In Mexico and in the south of the US, there is a dangerous tree striped scorpion. To the dangerous for human individuals include Arab thick-tailed scorpions.

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