The variety of species on our planet sometimesstriking the imagination and sometimes can cause nightmares. We hope that our short story about hematophages - the most common parasites on Earth that feed on human and animal blood - will not overshadow your sleep. In addition, when it comes to bloodsuckers, most recall mosquitoes, although in fact there are many more types of hematophages. In fairness, we note that some hematophages are not without a halo of elegance, attractiveness and mystery.
- 1 tapeworms
- 2 Pubic louse
- 3 Sea lampreys
- 4 Medical leech
- 5 Itchy itch
Theneiids are a genus of parasites widely knownlike tapeworms. Science knows 32 species of tapeworms that parasitize various animals. However, only two types of helminths affect a person. This is Taenia saginata - bovine tapeworm and Taenia solium - pork tapeworm. Bull tapeworm lives in the intestines and can reach a length of 2 to 5 meters. There are cases when the size of the parasite reached 10 meters. If no action is taken, bovine tapeworm can live in the human intestines for about 18-20 years. But pork tapeworm, he is a tapeworm, reaches a length of 2-3 meters. Tapeworm also lives in the intestines of humans, which, incidentally, is its final owner, but pigs and other animals are intermediate.
Pubic louse or ploshchita isa human ectoparasite insect whose length is from 1 to 3 millimeters. An amazing feature of this parasite is that it eats blood at least 50 times a day, which causes irritating itching in the pubic area, on the genitals, less often in the armpits and in the abdomen. Pubic lice cause a disease called head lice or phthiriasis, which is characterized by skin irritation. Diseases are usually sexually transmitted, although infections are not excluded by close contact with the wearer's clothing. By the way, experts note that the fashion for pubic hair removal has put these ectoparasites at risk of extinction.
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Hyperoarties are commonly known as sea lampreys. This is a very primitive species, outwardly similar to eels, although in no way connected with them. The lamprey body is jelly-like and cylindrical, without scales and very slippery. The mouth of a sea lamprey is round in shape with suction cups, so the animal can feed on anyone’s blood. The length of sea lampreys can reach 1 meter, the weight of these hematophages can reach up to 1 kg. Once the lamprey is attached to the victim, his numerous teeth and tongue scratch his skin in order to obtain blood. Sharks, salmon and other marine mammals are the favorite prey of lamprey.
Read more stories about the amazing inhabitants of our planet on our channel in Yandex.Zen.
Medical leech (Hirudo medicinalis) is a speciesannelids from a subclass of leeches. This is a parasite that feeds on the blood of humans and animals, which has been known for a long time. Its natural habitat is fresh water, so medical leeches are usually found in lakes or ponds with mud at the bottom and in thickets of reeds. This leech is able to distinguish and feel light, temperature and humidity. As soon as it sticks to the prey, it does not release it until it is fully saturated. Medical leeches have been used for centuries in medicine. In ancient Greece and Rome they were used because they believed that leeches cure all kinds of diseases. Nowadays, the use of medical leeches is so popular that they have become an endangered species.
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Itchy Itch (Sarcoptes scabiei)It is an egg-shaped tick with 4 pairs of legs and a size of only 0.23 mm. Its victims are animals and humans. Scabies itching causes, as you probably already understood, scabies. This disease is extremely contagious. This hematophagus digs passages in the human skin, simultaneously eating blood and multiplying. Thus, ticks cause severe itching, which intensifies at night.