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True flies are insects of the order Diptera. The name is derived from the Greek di-= two, and ptera = wings. Most insects of this order have two wings (not counting the halteres, club-like limbs which are homologous to the second pair of wings found on insects of other orders). Wingless flies are found on some islands and other isolated places.
These genetic mutations may have different results such as the development of muscles that cannot support flight or even result in the lack of wings entirely. [2] Flightless fly models have been especially useful for the study of human neuromuscular diseases such as spinal muscular atrophy, spinobulbar muscular atrophy, myotonic dystrophy ...
They are flattened, spiderlike flies without eyes or wings, and as such bear very little resemblance to other Dipterans. These flies are seldom encountered by general collectors, as they almost never leave the bodies of their hosts. Both males and females take blood meals, thus qualifying as parasites. Most species are highly host-specific.
The majority of insects have two pairs of wings. Flies possess only one set of lift-generating wings and one set of halteres. The order name for flies, "Diptera", literally means "two wings", but there is another order of insect which has evolved flight with only two wings: strepsipterans, or stylops; [2] they are the only other organisms that possess two wings and two halteres. [6]
D. melanogaster which carries the Cy allele (right), hence showing a characteristic phenotype of curly wings in adult flies [54] Genetic markers are commonly used in Drosophila research, for example within balancer chromosomes or P-element inserts, and most phenotypes are easily identifiable either with the naked eye or under a microscope. In ...
Alternatively flies of genus Melophagus are so adapted to parasitism that the adults never develop wings. Louse-flies without wings may appear like ticks, but the only stage of tick seen with three pairs of legs will be larvae these are much smaller than louse-flies.
In this case, the air is hitting an aircraft's wings instead of your face. As you can see from the video, the concept plane is rather small and incredibly light.
Soaring: gliding in rising or otherwise moving air that requires specific physiological and morphological adaptations that can sustain the animal aloft without flapping its wings. The rising air is due to thermals, ridge lift or other meteorological features. Under the right conditions, soaring creates a gain of altitude without expending energy.