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Experiments on fleas. It is amazing to say that the height of a flea jumping can reach 100 times its own height. He also said that in the scientist's experiment, the fleas were first put into a 1m high glass cover, and the fleas could only jump 1m high; Put the fleas into a 1250px high glass cover, and the fleas can only pick 1250px high; If the fleas are placed in a glass cover that is 500px high, the fleas can only jump 500px high; Finally, the fleas are pressed under the glass plate, and the fleas will not jump and will only crawl on the table.
And when people accidentally knocked over the burning alcohol lamp near the flea, the flames that spread to the flea actually caused the flea to jump again, more than 100 times its height!
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Fleas are a type of parasite. The parasite receives food and protection from another organism (the host) without giving anything in return. Adult fleas feed mainly on the blood of mammals (including humans) and birds.
Fleas are very well adapted to this parasitic lifestyle. Its flat body makes it easy to move between fur or feathers, and because the flea skin is thick and hard, it cannot be manipulated by the host's scratch. Although fleas are insects, they do not have wings.
They jump from one host to another. Their jumping ability is extraordinary, with some fleas being able to jump up to 200 times their body length. If humans had the ability to jump, we would be able to jump about 340 meters.
Fleas tend to live on nesting or burrowing animals. This is because young fleas need dust, filth to survive, and animal nests contain a lot of this waste. Fleas have evolved a special mouthpart that is used to puncture the victim's **.
Then suck its blood. When a flea bites, a special substance is injected into the victim's body that prevents blood from clotting, which is why inflammatory lumps are formed. It makes mammals, birds, or humans feel like tickling.
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Fleas can jump up to 35 centimeters. Fleas are only 3 millimeters long and weigh only about 200 milligrams, but they can jump up to 350 millimeters in height. That is, the flea jumps more than a hundred times higher than its body length.
Fleas jump every four seconds and are capable of jumping continuously for 78 hours. The force used to take off vertically is 140 times its own weight.
Fleas like to parasitize on furry pets, such as domestic cats and dogs, and if there is no regular in vitro deworming, it is easy to get fleas when you go out.
If you have a pet at home, you first need to do a good job of pet hygiene, regularly carry out in vitro deworming, and try not to take your pet to an unclean place or a place where other animals are raised. Clean your home frequently, especially in areas where pets sleep and behind beds, sofas, and furniture.
Once the fleas are parasitic on the animal, they begin to suck blood and are able to produce white eggs after a few days. Flea eggs can easily slip to the ground and mix with the dust on the ground, making them difficult for humans to detect. Flea eggs can be disposed of at the source by cleaning, which can be done with a vacuum cleaner.
If there are fleas at home, you can use fly killers to kill adult fleas, and open the window for ventilation after 3 hours of closed spraying. Take the clothes to boil or soak them in laundry detergent water for two hours, and scald large clothes and mats with boiling water; Then they are exposed to the sun. Apply 10% sulfur ointment evenly to the body and mat, and usually bathe with sulfur soap.
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Fleas can jump up to 3 meters horizontally, and up and down up to a meter high. Fleas are only millimeters long and weigh only about 200 milligrams, but they can jump up to a meter in height. The height of the jump is more than 100 times its length.
In proportion to the height of the jump, if the flea is the size of a human, it can jump up to nearly 200 meters. <
Fleas can jump up to 3 meters horizontally, and up and down up to a meter high. Fleas are only millimeters long and weigh only about 200 milligrams, but they can jump up to a meter in height. The height of the jump is more than 100 times its length.
In proportion to the height of the jump, if the flea is the size of a human, it can jump up to 200 meters.
What's even more amazing is that the fleas jump every four seconds and are able to jump continuously for 78 hours. The force used to take off vertically is 140 times the gravitational pull of the Earth, that is, 140 times its own weight. If a planet takes 100 years to reach at a normal travel rate, it only takes one year to calculate the speed at which the flea jumps.
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Fleas are very small insects, usually about 2-4 mm long, with a very elastic body. They feed on blood and are therefore often treated as pests. But did you know that fleas have amazing jumping abilities? How high can they jump?
The jumping ability of a flea.
Fleas can jump more than ten times or even dozens of times their length in a short period of time, and this jumping ability is amazing. The flea's protective organs are endowed with strong elasticity and elasticity, and the muscles and joints of the legs are also quite developed, which are important reasons why fleas can jump so high.
Jumping skills for fleas.
Fleas need to use some skills to jump high. They will use their hind legs to jump down forcefully, while they will bend their bodies so that the impact of the jump can be better applied to the lower legs, resulting in a higher jump height. In addition, fleas also use the principle of air resistance to help jump, and they can slow down their fall, thus reducing the impact on their body when jumping.
The relationship between the jumping ability of fleas and the size of their bodies.
Despite their small size, the height of their jumps does not have much to do with their size. The jumping ability of fleas mainly depends on how well their muscles and joints are developed, as well as how good or bad their elasticity and elasticity are. Rift God.
Limitations of flea jumping heights.
Although fleas can jump with incredible force, there are certain limitations to how high they can jump. In general, they do not jump more than 50 times their body length. This is because when a flea jumps too high, due to the influence of gravity, it will cause excessive pressure on the body, causing damage to the physiology of the flea itself.
Application of flea jumping ability.
Although fleas are often treated as pests, their ability to jump is also widely used by humans. In the aerospace sector, for example, scientists can study the jumping ability of fleas to design more advanced robots and spacesuits.
How to prevent flea infestation.
Fleas can easily spread diseases, so it's important to prevent flea infestations. First of all, keeping the home clean is the most basic precautionary measure, and it is necessary to clean the indoor space frequently, wash bedding, carpets, etc. Secondly, families with pets should give their pets regular bathing and physical examinations, and regular deworming.
In addition, there is an option to sanitize with a special flea agent.
Silly Knots Despite their small size, fleas have amazing jumping abilities. The jump height of a flea does not have much to do with its body size, but mainly related to factors such as how well its muscles and joints are developed, elasticity and elasticity. Although the ability of fleas to jump is widely used, it is also very important to prevent flea infestation.
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Water can't drown lice and fleas, but some people say that adding a few drops of wind oil essence or orange peel juice to the water can get rid of lice after washing it several times, but I haven't used it. Now there are many external drugs on the market, such as Merial's "Fulian" drops, Novartis's "Nemesis" Du Flea oral medicine, and the domestic "Insecticide" drops are also good, and there are also collars for sale, which can also repel insects, which is very convenient.
Go to the pet store and buy flea powder.