Is it true that everytime a fly lands, it lays eggs?
442757
No, flies definitely don't lay eggs every time they land.  They lay their eggs in suitable locations, and even more importantly, only the female flies actually lay eggs, so about 50% of the flies that land on you will never, ever lay eggs under any circumstances.
1003555
About 7-10 days ago it was decided, recorded and now formally accepted by scientists that the egg came first. \n\nAnd mornings in my house it is true, the eggs have always come first. Before the toast.
645104
Of course they do!  You probably got eggs all over the place...
964669
If it has wings it's a "fly"\nIf it doesn't it's  "grounded"!!! \nThat was a cute question. I'd never thought of that....LOL ;o)
12661
They egg did. chickens aren't the only one to lay eggs
1132595
Not sure exactly what you mean, but like all animals, flies are born, live, and then die, once per customer.  They may seem to be reborn because, heck, there are so many of them and they all look alike.\n\n(I use "animal" in the biological sense of "living thing that's not a plant", and don't want to argue about viruses)
131428
no they dont lay egg they carry the eggs in a pouch til they are ready to hatch
1063370
when it was being grown a fruit fly might have landed on it, and laid its eggs. a fly's egg is generally microscopic and cant be seen by the human eye. when they hatch and start to feed, is when they get bigger and turn into the flies you see now.
311331
Yes, as evryone above has pointed out, but they will also come from the body.  When someone/something dies, there are various bugs that lay eggs on the freshly-departed body very soon after death.  So these may hatch on the body after it's in the coffin after it is sealed.  The field of Forensic Entomolgy uses this phenomenom to fairly accurately calculate time of death of discovered corpses.\n\nTry not to be too squeamish or concerned about it, though.  We're just meat after we pass...\n\n("Stiff" is a wonderful book by Mary Roach about what happens when we die.)
306074
The one you mentioned is a good one. What about eggs grown under heat and eggs grown in a blanket and which one hatches. I won the science fair with this one. It's very original.
756260
yes they can...it is disgusting, but possible.\n\nIf you fear that a bug may have laid eggs beneath your skin see a doctor before it matures.
383433
im not sure what type of fly you are referring to but the common house fly has a life spanof7 to 10 days in which time they go from egg, to larva to pupa to adult some adult. flies in the north  may survive indoors for serveral months
100052
They can go anywhere they won't get wet. This includes places like the bark and leaves of trees, porches, grass, or anywhere else. But I suspect many just die, and it is the babies that live on. Flies don't live very long anyways, and the larva grow up fast. If a generation of flies die, the next will be around in a little bit.
484976
Actually, most "flies" are suppose to mimic a "hatch" of various different insect's. \n\n    The story goes, in the late 1800's, when the "sport" of fishing & "Fly-Fishing" began , they didn't have a wide variety of "material" to make there "flies" , (various animal hair & bird feather's, colored yarn),  from , so some outdoor newspaper/magazine journelist ,(can't think of his name) , told his reader's that the "darkest" hackle was the best material for most  fishing situation's, (apparently, he had a "banner" day fishing for trout with an ugly "black" "fly"). His way of "thinking" got around & the nickname "Fly-Fishing" stuck!\n\n\n(Then again, I could of made all that up!)\n\n LOL (I honestly think it was Royalty in England who quoted the name ,"fly-fishing".)\n\nDoes it matter that much? I just wish I was out there right now "catching" them & not "talkin" bout it! lol
377606
Um, no. Only fertilized eggs can be incubated and hatched. The  eggs that you buy in a store are basically the unfertilized eggs of menstruation. (It is analogous to the unfertilized egg each woman dispels each month during her period.)
111166
When they fly into a ceiling, their feet stick on the ceiling same as with a wall. Flies, like all insects have 6 legs, 2 in the "front" and 4 in the "rear" --\napproximately. As the fly approaches the ceiling, it "reaches up overhead"\nand grips the ceiling with its two front legs. It's forward momentum carries the rest of the fly in the direction of flight. It then does a "180 degree"\nflip planting its 4 rear legs on the ceiling, landing in the opposite direction as the initial direction of flight.\n\nThis is not as bizarre as it sounds. Human gymnasts on the uneven bars perform similar trajectories in some of their exercises.
1162531
Actually this has a real answer. According to the book "Random Kinds of Factness: 1001 (or so) Absolutely True Tidbits About (mostly) Everything" by Erin Barrett and Jack Mingo the egg came first.\n\nAccording to their research chickens evolved from early Indochina birds called red jungle fowl. Mutations in the jungle fowls eggs produced things more like chickens...these bred with other bird causing more mutations producing todays chicken.\n\nSo the eggs have it!