Dragonflies (suborder Anisoptera) relatively easily distinguished from damselfly (suborder Zygoptera). Dragonflies are generally relatively large stature and perch with wings open or stretched sideways. While damselfly generally smallish (though there is some kind of rather large), has a similar slim abdomen thin needle, and perch with wings closed, upright fused onto his back.
Habitat and habits.
Dragonfly and damselfly spread widely, in forests, gardens, fields, rivers and lakes, to the yard and the urban environment. Found starting from the shore to a height of more than 3,000m above sea level. Some species, generally the type of dragonfly, is a strong and broad aviator travel area. Several other species have specific habitat and the living area is narrow. Damselfly usually fly weakly, and rarely venturing far.Dragonfly life cycle, from egg to death as an adult, varies between six months and a maximum of six or seven years. Dragonflies lay their eggs on plants that are in the water. There is a kind of pleased with stagnant water, but some types are happy to put their eggs in water that is rather heavy. After hatching, larvae (larvae) dragonflies live and thrive in the bottom waters, metamorphosed into nymphs, and finally out of the water as an adult dragonfly.
Most of the life cycle is spent in the form of a dragonfly nymph, below the water surface, using internal gills to breathe. Dragonfly larvae and nymphs live as ferocious carnivores. Large dragonfly nymphs can even hunt and prey on tadpoles and fish children. As adults, the dragonfly is only able to live for a maximum of four months.
Amazing Facts About Dragonflies.
Dragonflies are flying insects that can hover in the air. Dragonflies are thought to have existed 300 million years ago. To obtain food, dragonfly get them from other insects that prey on the weaker from it. There are so many species to dragonflies, and most of them are found near water.According to the researchers, the dragonfly has many advantages compared to other insects. Based on the results of the latest research experts found a very surprising fact that modern technology helicopter flight was very far behind compared with a dragonfly. Dragonfly flight systems beat all man-made machine. For this reason, the design of the last model of the famous Sikorsky helicopters in the world, created using designs dragonfly as a model framework. In this project, IBM helps companies design Sikorsky to carry pictures of dragonflies in particular computer. After that, by taking the example of dragonflies, thousands of illustrations created in the computer. Then, with the example of dragonflies flying technology, they invented a Sikorsky helicopter models.
Dragonflies have a very sharp vision with the total number of micro eyes thirty thousand pieces and each eye leads to different points so that when flying, he can maneuver very quickly even though at the last minute to avoid the pursuit of prey or save himself from a truck coming the opposite direction. Unlike the case with the pilot after the maneuver, he will have difficulty determining the aircraft's position relative to the earth's surface and can lead to the risk of accidents. Therefore, the aircraft is equipped pilot gyroscopes used to compare with the actual horizon horizontal line so that it can quickly determine aircraft position and avoid the risk of accidents.
Dragonflies maneuver performed while flying not only because of his eyesight sharp, but is influenced also by the hair - the hair on his body. When the dragonfly's body position changed during the flight, the hairs on the body and the head becomes aroused. Nerve cells in hair follicles was sending information to the muscles of dragonflies flying about his position in the air. This allows the muscles will automatically regulate the amount and velocity of the wing. Thus, in the most difficult maneuvers, dragonflies never lose direction or control. This system really is a miracle of engineering.
Excess on small insects are not only that, dragonflies can also fly at high speed. Dragonflies are the fastest insects in the world, he is able to fly at speeds of 97 km / h and can travel as far as 137 km in one day.
At high speeds, the dragonfly collides with its prey. The shock of the collision is very strong, but the shape of the bending of the body can absorb shocks in a collision, unlike the case with prey. Dragonfly prey would lose consciousness or even die as a result of the collision. After the collision, the rear legs stretched forward and catch dragonflies prey startled, then torn - shreds and eaten with powerful jaws.
Given the structure of the dragonfly's body so perfect and advanced to the size of an insect smaller than the other insects are very unreasonable. How could a dragonfly can be more advanced than the current cutting-edge technology such as Sikorsky helicopters. According to the core of Darwin's theory of evolution which says that "Evolution occurs because the process of natural selection (natural selections). Species that live in the present comes from living things that come from the past ". Dragonfly may not evolve with the oldest fossilized dragonfly dragonflies living today do not have a difference at all. Impossible if the system is in the body of the dragonfly is formed stage by stage by chance as the content of Darwin's theory of evolution. This is because that for a living creature can live, all these systems must exist at the same time and complete.
Dragonflies are widespread in forests, gardens, fields, rivers and lakes, to the yard and the urban environment. In general, these insects are rarely far from the water, where they spawn and spend pre-adult children. One of the benefits to human dragonfly can be demonstrated with dragonfly habitat. Dragonfly habitats can be showed the water quality in the environment around us. If they can meet a lot of dragonflies means mark our waters are relatively clean of pollution, because the eggs and nymphs can only multiply and survive in waters that are not polluted.
Advantages of these small insects can inspire researchers create increasingly sophisticated means of transportation for human need today. Given the benefits are so great dragonfly for human life shows us how great the power of God created creatures with their respective strengths so that we should be grateful to all of this. Nature has provided God to man and it should we preserve and conserve nature and contents for the ongoing stability of the ecosystem on earth.Thank you for reading this article. Written and posted by Bambang Sunarno. sunarnobambang86@gmail.com
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name: Bambang Sunarno.
http://primadonablog.blogspot.com/2015/05/you-know-dragonflies.html
DatePublished: May 28, 2015 at 10:08
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