- NEW!
by jabberwock359 on October 9th, 2009
I found the following at:http://answers.google.com/answers/threadview?id=96276
Summary The three-dimensional flight paths of male Fannia canicularis underneath prominent indoor landmarks were filmed and reconstructed for analysis. The flies patrol well-defined airspaces (of about 50x50 cm horizontal, 25 cm vertical extent) underneath landmarks like lampshades. Their flight paths have a distinct structure: they fly straight for on average 400 ms and an average distance of 20 cm; they change flight direction by abruptly turning through on average 95° and continue to fly straight. the sign of changes in flight direction is kept constant for periods of 2–20 s and changed at irregular intervals. Male flies approach a landmark from below and, in the absence of other flies, settle to patrol an airspace close to the landmark. A second male approaching the same landmark chases, or is chased away by, the patrolling fly when it comes too close and may eventually settle to patrol 10–30 cm below the airspace occupied by the first fly. A dummy fly presented to a patrolling fly between the airspace he patrols and the landmark is vigorously attacked from below and prevents the fly from regaining his former patrolling station. By trapping flies on sticky ribbons suspended from the ceiling, which served as landmarks, it can be shown that males and females approach and land on landmarks. It is suggested that male flies establish a lek-type mating assembly underneath landmarks to intercept approaching females. The position of male patrolling stations relative to the landmark suggests that females might arrive at landmarks from the side (and not from below, as males do), thus crossing the dorsal visual field of patrolling males.
seems a good explanation...
A fruit fly landed on my apricot mango yogurt, and I didn't realize it was there until after I put a spoonful in mouth. Perhaps I'll die?
by Quiet_Listener on July 20th, 2011
| 3 people like this
Have you ever seen maggots before? Did one ever touch your skin?
by solsticexcorona on June 29th, 2011
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How long will a fly keep alive trapped in your refrigerator with plenty to eat and drink?
by -O-uknow on July 22nd, 2010
| 1 person likes this
If you see the insect fly, what would you do?
by XT on July 7th, 2010
| 2 people like this
How does the fly get in my house?
by XT on July 7th, 2010
| 1 person likes this
You're reading Why do flies indoors always fly around in circles? Isn't this aimless? SOmetimes a single fly, sometimes several flies go round and round and round- WHY?
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