their circuit is very geometrical, haven't you noticed?!\nthey seem to go on and on without even wanting to get out of the room when the window's open...they are small flies, not the big ones that you get around your meal in summer! mm what could I say...? they are black, seem to be soooo stupid! theyre just measuring half a cm. that's all I can say for now..
200142
They are likely following air currents-Flies dont think about where they are going-they dont really "think" at all, in terms of making decisions.  THey just have simple reactions to ari currents, heat, light, and chemical sensations (food)-If they are circling, its because there are air current moving in a circular motion, and they are following those.
411634
I think haysoos2 gave the most appropriate answer that could possibly be given\ngood one, you beat me to it!\n\nI think what you might have meant are actually hangflies, they are not actually flies at all, they belong to the order Mecoptera, with the scorpion flies. These flies look very similar to Tipulidae, and other Nematocera, but they are actually predatory, they have 4 wings and the long cone-like mouthparts that give them away. These impressive little hunters hang from vegetation and capture flying prey as it passes, pretty interesting group of insects!\n\nhere is an image of one\nhttp://bugguide.net/node/view/55252\n\n\nHope this helps!
470932
A quick question with a quick answer: They're not blind.\n\nBut if you're still curious if they use it to navigate around... No.\n\nThey use their hypersensitive antennae to navigate, distiguish objects, detect vibrations and find their food.\n\nA cockroach with its antennae cut off will die of starvation.\n\nI do this ALLLLLLLLLLL THE TIME!!!!\n\nAND ITS FEEEEEEEEELLS SO GOOOOOOOOD!!!\n\nYucky creepy bastards!
406347
During the summer and autumn/fall, many fly species lay eggs in plants and things. The eggs hatch, and the larvae stay in the plant for the winter, developing into adults. In the spring they leave the plant and find a mate, and the cycle starts all over again.\n\nSome flies do not need to mate to reproduce, and their offspring are 'clones' of the mother. This is a very quick way of producing offspring, so the population increases very quickly when it becomes warm again.\n\nThe black flies you saw were probably lying dormant in some nooks and crannies somewhere. When the temperature drops, their body processes slow down and they 'hibernate'. When the temperature rises they become active again. Thats probably where you blackflies came from
392810
There is a fly in your room.
406091
I think the insect you are describing is what is known as the house centipede. They are incredibly fast little buggers, and can give you a good startle if you run into one unexpectedly. They are common in many types of houses and feed on smaller insects, sometimes even bed bugs, carpet beetles, clothes moths and young cockroaches, so they are typically more beneficial than detrimental....\nhere is a photo:\nhttp://bugguide.net/node/view/5590\n\nhttp://bugguide.net/node/view/74226
144403
Apparently they look like flying saucers. But I've never seen a flying tea cup that would fit on one of those "saucers" so I don't know. And they might like us, but if they do... they have a funny way of showing it. Anal probing leads me to think that these intergalactic folk might be gay. Brokeback Probing. Ouch.
543277
They are not that rare. You are just not looking in the right places. I work in an office building in north Raleigh, NC and I see them every season. We had one on the outside of the building that to be 4 to 5 inches long this last summer. I don't know what to tell you, but just start looking around in different areas, like around big buildings near dark, and around schools and talk walks in public parks and such. Good luck.
597256
It is some type of fly. I have seen several also, and when i called my mom she says that they are flies.
427152
I have often wondered the same thing.  I don't think they are blind just a bit off track.  They are strange, they fly into your head,  drop on the ground on their back and lie there waving their legs around.  Stupid!\n\nMy younger brother used to call them BENSONS. When it was around Xmas time he would run around yelling "The Bensons are coming the Bensons are coming"
465573
Tough it is a bit late, its not unheard of, as long as they don't freeze  they can survive just with a somewhat slow metalbolism, its been a rather warm Nov in the north east which may account for this, once the temp really plummets they will stop appearing. If its the ones shaped like a T its probably a plume moth, if not its probably some type of noctuid.
458931
People can get frustrated very east and don't have a lot of patience, ESPECIALLY if they have to go somewhere in a hurry. No one knows for sure, but my guess is that it is something of an OC (obsessive compulisve) they like to press buttons, but since they have nothin else to do, they will press the button "50" times. People dont know limits, and they think that will speed the light, so they can move fasater
197414
That is because the fly IS moving at the speed at which the vehicle is moving. By the way, it DOES NOT hover at the same place. Suppose the fly is a little fast than the car , then it appears to the fly that the wind-shield is moving towards it and it then adjusts it's speed to remain in the same place( if it chooses to). In the same way in all other cases, it modifies it's speed.\n Someone above pointed to inertia. Remember inertia only acts if the fly or any other object is in contact with the moving object. Otherwise it does'nt come into picture.
196481
No way man....I like those 'bug zapper thingys'...zzzz...zzzz...those are awesome! I wish they made those for people....I could put one by my front door.
479015
Sha...that is farily normal for Spongebob.   They do stuff likwe that all the time....Like the fact that sometimes he turns right to go to work and the Krusty Krab and sometimes the turns left.   It's gotten to be where you just expect that sort of things.   I barely even notice them anymore...they are just part of the "charm" of the show...(yeah..I know...I really  REALLY need a wif...uh..I mean  need a life...yeah...life...thats the ticket..)
242946
They know which strands are the sticky ones and which aren't.  I think it's impossible for a spider to stick in its own web.\n\nhttp://arachnophiliac.co.uk/burrow/whydoesnt.htm
222359
Wall street journal hunni just squash those stupid lil dragonflys...I agree they can be just so annoying.  Our space would be so much better off without them...