How did mosquitoes come to vampires ?

Female mosquitoes suck human blood. Don't think that mosquitoes suck human blood to fill their stomachs, in fact, this view is wrong, only female mosquitoes will suck human blood when they reproduce the next generation, and usually feed on nectar and other substances. And male mosquitoes don't suck human blood, which should be clarified.

Mosquitoes need some nutrients in the blood when they reproduce the next generation, so they need to absorb some human blood to meet the requirements of reproduction.

Mosquitoes will find their target and then attack. The antennae of mosquitoes are very powerful, and they can detect whether there are humans in front of them from a long distance, and they can identify whether there are people through human breathing and sweat secretion, so it is easy to find the target, especially people wearing dark clothes are more likely to be attacked, so they should pay more attention to clothing and do not exercise too vigorously when they go out, otherwise it is easy to be attacked by mosquitoes after secreting sweat.

Mosquitoes transmit various diseases when they suck blood. Although mosquitoes do not rely on blood to sustain life, they will release some chemicals on the surface of the human body when they suck blood, and these chemicals can.

The blood-sucking dao mosquito is a female mosquito, and the mosquito's mouthpiece is a stinging mouthpart. It consists of an upper inner lip (dao upper lip pharynx), 1 in the tongue, and 1 pair in the upper and lower jaws, which form an elongated needle-like structure and are contained in the sheath-like lower lip. The upper inner lip is elongated, and the ventral concave surface forms the inner wall of the food tube.

Male mosquitoes do not suck blood. The female mosquito inserts its beak into a person's capillaries and secretes an anticoagulant substance to suck blood.

The mosquito sucks blood with a suction stinger, and there is a long tentacle growing in front of the head, which has six small thorns, two of which are used to fix the position, one to find the source of blood, and one to suck blood.

Mosquitoes use their mouthparts to suck blood. It will pierce the person's ** with its sharp mouthparts, and then constantly stir in the person's **, looking for suitable blood vessels, and after finding a comfortable position, it will use its mouthparts to suck blood.

The blood-sucking mosquito is a female mosquito, and the mosquito has a unique stinging and sucking mouthpart, which sucks blood through a needle-like structure and pierces ** to suck blood.

The mouthparts used by mosquitoes to suck blood and bite humans are composed of six needles, which are as sharp as a needle tube and can be easily pierced**, and the responsibilities of these six needles are different.

The outermost two needles in the mosquito's mouthparts are serrated and can be cut like a knife**. The two needles next to each other need to help the mosquito pull it apart and help the mosquito suck blood.

Mosquito blood-sucking is closely related to the regulation of micro-RNA-1174 (miR-1174) genes. Scientists from Southwest University found that mosquitoes' desire to suck blood is controlled by a gene in the body, and when this gene is removed, the taste of mosquitoes will change greatly, and they no longer like to drink blood, but drink sugar water instead; Even if you drink blood, you will have indigestion.

Do you know how mosquitoes suck blood, Now let's take a look at how this old six does it, first of all, it will land smoothly on your **, it also knows that you are afraid of pain, and will give you an intimate mouth of old phlegm to numb your pain, many people don't know that the mosquito's mouth is actually composed of six needles of the fine intestine, as long as it can be observed under the microscope, these six needles have a clear division of labor, the front two serrated cuts your epidermis, and the back two are responsible for clearing the obstacles when finding blood vessels, after finding blood vessels, He will first use the needle in the middle to spit out saliva to prevent blood clotting, and finally this is his real eating guy, it can automatically search for the location of blood vessels, in the process of it cooking, the virus will also be injected into your blood by the way, it will be sucked until the stomach swells to the back of the body, and after eating, he will separate the blood and water of the body fluids from the body, this is to have enough space to consume red blood cells, after it flies away, you will feel a burst of itching, This is an allergic reaction caused by the residual saliva of mosquitoes, at this time your body will release fluids and cells to the bite site, activating the defense mechanism, this is what causes you to blister, as a qualified old six, a full meal, urgently needs forty to fifty seconds, if you find that this time the bag is bigger than usual then bite your text, most of the novice business is not skilled, that's all, if all the mosquitoes in the world disappear, do you know what will happen.