For example, flatworms have an unusual ability - they can turn themselves inside out. And tapeworms, having settled in the human body, can reach a length of 22 meters. Agree that this is both terrible and surprising.
Also, this interesting fact was deduced: in a herd of 40,000 sheep, there is a moving mass weighing three tons, consisting of tapeworms- Moniesia, which absorb glucose.
Planarians have such an important ability as regeneration. Small parts of the planarian body are capable of forming a full-fledged organism. Also, under unfavorable conditions, planarians are capable of falling apart into pieces, but as soon as living conditions become normal and suitable for life. planarians can return to their normal state.
At one time, scientists puzzled over an unusual organism that had a cruciform shape. After some time, the riddle was solved. The cross-shaped animal, having 2 heads and 2 tails, was worms that sucked on each other. This unusual animal was given the name paradoxical squamous.
Of course, there are not as many interesting facts related to flatworms as, for example, facts that tell about larger and more famous animals. But a person should not forget about the little inhabitants of our planet, because they are all important and necessary. Flatworms bring both harm and benefit, and you need to be interested in them, because who knows, maybe someday this knowledge will be useful to you. All these interesting facts about flatworms very informative, they make you think that even such small inhabitants of our world have such unusual and interesting abilities. Study nature, be interested in it. Good luck!
Worms are a huge class of the animal kingdom. Even though they are disgusting appearance, unpleasant to the senses, but very interesting to study. Many people will probably say something interesting. In this article we will look at many facts about worms that will not leave anyone indifferent.
Annelids get their name from the bristles that completely cover the animal's body. Most individuals have a head with tentacles and eyes, where bristles, antennae and tactile whiskers are located.
The most interesting representative of annelids is the earthworm, which we will consider in more detail. 
Earthworms are part of the existence of life on the planet. They are food for rats, moles, toads, fish and birds. Earthworms are 82 percent pure protein and are eaten not only by animals, but also by people. If you eat them constantly, then the level of cholesterol in the human body will significantly decrease. Moreover, the earthworm cleans the soil in which we grow food.
An earthworm is made up of muscles and the skin that covers them. They do not have lungs or a nose; they breathe through the pores of their skin. They have no eyes, but are very sensitive to the sun. They are hermaphrodites i.e. bisexual. U earthworm from 5 to 9 hearts. 
There is an earthworm museum in Australia. It is an attraction, externally made identical to a 100-meter worm. Inside, everything is also made in the form of the insides of this animal. Worm lovers can walk and climb the passages inside on all fours. 
Many people believe that cutting an annelid in half will result in two worms. However, it is not. Only the part with the head will survive. The severed tail will die. The only one who can restore a full-fledged organism completely from an insignificant small part of itself is a flatworm. As they say, divide and multiply. 
The largest worms on the planet are those living in Australia on the hills of Gippsland; they can grow up to 4 meters in length. 
Earthworms have amazing ability mate for several hours. This feature makes them superior even to humans. One sexual act can last up to two hundred minutes! And research shows that during mating season worms “go” to each other’s holes up to fifteen times in a row. 
These worms are on winter period and a period of drought, like some other animals, they fall into suspended animation. They burrow deeper into the ground and hibernate. With the onset of warmth, the worms wake up and continue their activities of supplying the earth with the necessary substances, as if nothing had happened.
It turns out that the earthworm lives in groups and also takes important decision through “dialogue” with other cohabitants. 
According to some studies, they can communicate and influence the behavior of relatives through touch. This feature makes it possible to collectively decide where the entire herd should move. To summarize, we can say that the earthworm is a social animal that leads a group lifestyle. 
The flatworm is the causative agent of many diseases. He doesn't need oxygen to live; he gets everything he needs from his owner's orgasm. To such dangerous species include tapeworm, bovine tapeworm, and liver fluke. Not only do such worms cause harm to the body by their presence, they can grow over 20 meters in length and completely fill some organs of the host animal with their body. 
The life cycle of flatworms is also not small. Eg, bright representative bovine tapeworm can exist in the human body for over 18 years. Over its lifetime, this animal will produce more than 10 billion eggs. 
Flatworms, like many other worms, are hermaphrodites. Their mating process is the same: during the battle, each individual tries to sprinkle a little sperm under the skin of the enemy in order to subsequently become the parent of offspring. Some species of this worm have a very interesting reproduction process. The meeting between the two takes the form of fencing, using a dagger-shaped penis for penetration. 
Another amazing representative of this fauna is the earthworm. Hand on heart, we can say that it has existed since time immemorial, when dinosaurs inhabited the Earth. At that time it was “fashionable” to call everything that did not have legs a worm, be it a snake, or maggots, or even a dragon.
The earthworm is probably the slipperiest creature on the planet. There are representatives that reach a length of more than three meters. One such worm is the Australian earthworm Megascolides australis. But Driloleirus americanus from North America, although three times smaller in size, has a different record - it is capable of burrowing to a depth of more than 5 meters. 
He was also considered an extinct animal for a long time, but it turned out that he had been setting burying records all this time. Its body is pale pink in color and smells of lily. There is another representative of the earthworm, whose length exceeds one and a half meters. This is Spenceriella gigantea from New Zealand. Although it is not the longest, it has interesting ability– his body glows in the dark. If you find it at night, you can use it instead of a flashlight. 
Regular earthworms It turns out that there are very amazing and useful representatives of living nature. It’s not for nothing that experienced gardeners call them invisible plowmen and their irreplaceable helpers.
Such different “identical” worms
Not many people know that there are more than 200 species of earthworms. They constantly actively dig tunnels in the ground, and at night they crawl to the surface and feed. Only heavy rains can force them to leave their burrows. The most common types of earthworms are:
Giant earthworm
- tetrahedral live in places with high humidity, such as wet mosses;
- smelly live in piles of dung, garden soil with increased fat content. You can recognize them by the rings on the body segments that are red or brown;
- yellowish-green found in damp garden soil, flooded coastal cliffs, and rotting leaves. They have a greenish, yellowish, reddish body color;
- reddish prefer humus of medium humidity. Their distinguishing feature– purple or reddish-brown color of the back;
- ground, also called crawlies, ordinary ones chosen for life clay soils, although they live, in principle, everywhere. It is the worms of this species that crawl to the surface after precipitation to feast on plants;
- Californian worms– red hybrid – artificially bred by Dr. Barrett. Unlike other representatives, this worm lives longer, processes it better, fertilizes the soil, reproduces more and faster.
Interesting fact that different types worms grow in length from 1 cm to 2 m 50 cm. The longest are tropical species. On the territory of countries former union modest worms up to 45 cm in size live.
Earthworms are real little hard workers. They eat plant remains and various microorganisms in the soil. In the process of feeding, worms loosen the soil, help saturate it with air, and fertilize it. It is thanks to their vital activity that humus is formed.
In the intestines of these small workers, the soil is biologically saturated active substances, including enzymes, vitamins, amino acids, and even antibiotics. Eaten by worms organic matter while in their intestinal tract, form humic acids.
Already in the soil, these acids combine with its mineral components. The resulting compounds give the earth structure, fertility, and protect against erosion. That is why it is so important for these little workers to live in the soil.
- Classification and structural features
- Digestive system
- Respiratory system
- Nervous system
- Reproductive system
- Interesting Facts about white planaria
- Is white planaria dangerous for humans?
Classification and structural features
Respiratory system
Flat, free-living organisms have the ability to breathe through their skin. Oxygen penetrates cellular level, saturating the body. It comes directly through skin covering. Extraction to the outside is carried out in the same way. carbon dioxide. The larger the animal, the better gas exchange occurs in its body. Such worms are more mobile and hardy than others.
Nervous system
Structure nervous system also peculiar. It is a cluster nerve cells(numerous holes, paired nodes). Ligaments extend from the nerve trunks to all internal organs.
Reproductive system
In male representatives, testes are located in the parenchyma area, which look like small, peculiar vesicles. Tubular-type vas deferens depart from them, which supply the copulatory organs.
The reproductive system of females is characterized by the presence of ovaries, which are paired reproductive organ. Tubes extend from them, which serve as oviducts. Thanks to these organs, the zygote moves to the copulatory bursa. The structure of the reproductive system in females is simple.
The process of fertilization occurs internally. The structure of the bodies of worms is such that the act of copulation is carried out when the ventral sides touch each other. The eggs are fertilized by sperm and move downwards through tubes specially designed for this purpose. The structure of the reproductive system and the functions of female individuals are such that the zygote first accumulates the reserves necessary for further development nutrients, after which it becomes overgrown with a dense shell. The zygote gradually becomes an egg, which has a brown color and is packed into a so-called cocoon, reaching the size of a pinhead.
Fully formed cocoons are attached to the leaves of underwater plants using a special stalk. Newborn planarians develop from them after just a few weeks.
Interesting facts about white planaria
White planaria is not dangerous to humans. The only harm is the destruction of the inhabitants of the aquarium.
An effective remedy against planaria particles and eggs is Flubenol powder. It is enough to make a 5% solution and pour it into the aquarium in an amount of 100 ml for 2-3 days. Next, it is recommended to update 50% of the water. After 7-10 days, treatment is necessary in mandatory repeat. To increase the effectiveness of the disinfection performed, it is recommended to siphon the soil.
At the beginning of studying biology, many schoolchildren are asked the question: “What moves the body of a flatworm?” Naturally, most of them cannot even give the correct answer to this difficult riddle.
general information
Flatworms are one of the many amazing representatives of our planet and its unique nature. Large quantity flatworms belong to the category of predators. Some also prefer a comfortable life inside a human or animal body to free swimming.
Once in the body of a living creature, such worms cause ailments and various diseases. The sizes of such worms are also very ambiguous. Some individuals reach a length of only one or two millimeters, while others can grow up to twenty meters long.
It would seem that there simply cannot be anything interesting about worms. Biology (type - flatworms) can provide a wealth of information about them to everyone. Description and all helpful information they are widely presented in many textbooks on this subject.
How does a flatworm move?
All flatworms have one unusual feature What sets them apart from other creatures in nature is their ability to turn their body inside out.
Some worms that have settled in the body of a living creature can grow up to twenty-two meters in size. There is no point even arguing that this is not only an amazing fact, but also terrible at the same time.
All flatworms have the ability to regenerate. From one small piece of such a worm, one full-fledged individual of this species may well develop. Under unfavorable conditions, all the planetariums to which they belong can fall apart into separate pieces. As soon as the conditions for their life become normal again, the worm again acquires its previous form.
A mystery for scientists around the world
For quite a long period of time, many scientists puzzled over an organism that differed from all others in its cruciform shape. After a certain period of time, this riddle was decided. It turned out that the animal, which has two heads and two tails, is two worms that are tightly attached to each other.
Of course, there are not so many amazing facts about these worms, but they exist. Even though small animals are fraught with much fewer mysteries than their larger counterparts, they are also important and necessary for nature.
Flatworms bring not only harm to humans, but also invaluable benefits, so you need to be interested in them. You should know what moves the body of a flatworm.
