Why aren t spiders insects? Why spiders don t belong to insects

1. Safari spiders: Safari spiders are common spiders in hilly areas, with large populations and strong predation ability, which play a very important role in controlling pest populations.

2. Web-forming spider: the most important feature of web-forming spider is web-forming behavior, secreting mucus through the protrusion at the tip of the silk sac, this mucus can be condensed into very fine silk when it encounters air, and the web formed by silk has a high degree of viscosity, which is the main means of predation.

3. Cave spiders: Cave spiders like to hide in sand piles or holes, and build webs at the entrance of the holes, the webs themselves are not sticky, and are purely used to sense the size of the prey and prey on them, such as bird-catching spiders, Chinese tarantulas, glyph crusty ground spiders, etc.

All insects are 6-legged, as long as they are not 6 (the 10 behind the caterpillar are suckers). Moreover, insects have three parts: head, thorax, abdomen, and spider have only two parts: head and abdomen (without thorax ......).Hahahaha! ）。

The reason why spiders are not insects is because spiders have four pairs of legs, and only two parts, the cephalothorax and the abdomen, do not fit the characteristics of insects

The basic characteristics of insects can be summarized as follows: the body is a three-segmented head, abdomen, thorax, two pairs of wings and three pairs of feet, a pair of antennae on the head, and the bones are wrapped around the outside of the body, and the shape is very changeable. The body of the spider is divided into two parts, cephalothorax and abdomen, and it also has 8 legs, so the spider is not an insect.

Control the temperature well, pet spiders, especially bird catchers, most of them are tropical species. Generally speaking, less than 20 degrees will reduce eating, and below 10 degrees will lead to life-threatening food. Not to mention the weather in the northeast, which is dozens of degrees below zero, it must be hopeless.

Therefore, it is indispensable to raise a pet spider with a heating pad. Of course, it's better to use an incubator if you have a piece of work. Change the coconut soil frequently, and the coconut soil is the bedding material for raising pet spiders.

In general, sterile coconut clay is used that is commercially available. However, because it is generally used after soaking, it is easier to breed mite bacteria, resulting in small white particles mixed with dots in the coconut soil, resulting in "explosion mites", which will lead to the death of spiders in severe cases. So be sure to clean it up on time.

The living habits of spidersIts silk webs can be used to snare insects and hunt insects, and can also be used as a safety bag. It often wraps leftover food in a net and saves it for the next time. Most spiders are poisonous, when preying on live prey, first bite each other with venomous fangs, let the tooth venom flow into the prey's source of noisy old body, so that the other party is paralyzed after poisoning, unconscious, and then secrete saliva that can dissolve the prey, so that it dissolves, and slowly suck the food after dissolving, until the prey is sucked clean, there is nothing left.

Although spiders and insects both belong to the phylum Arthropods, spiders belong to the class Arachnids in the phylum Arthropoda, while insects belong to the class of insects in the phylum Arthropods, and there is a significant difference in the characteristics of the two, so spiders do not belong to insects. Spiders do not have the morphological characteristics of the class Insecta. The insects are divided into three hail liter sections:

Thorax and abdomen, one pair of antennae, one pair of compound eyes, two pairs of wings, three pairs of feet. Whereas the body of a spider has only two parts, the combination of head and thorax is called cephalothorax and abdomen, and spiders have four pairs of legs, one more than insects. Therefore, spiders cannot be called insects by the standard of insects, they belong to the arachnids of the subphylum Arthropod, and are taxonomically close to the large family of insects.