The adult housefly can live up to one month in the wild. The fruit fly also lives for approximately 30 days after reaching adulthood. Flies survive longest in warmer temperatures and their ideal temperatures—between 75 and 80 degrees—are those found in most American homes.
Most fly species help break down and consume garbage, feces, decaying vegetation and dead animal bodies. Some species of flies assist with the pollination of plants. The forensic field sometimes uses the appearance of blowfly larvae to help determine the time of death in homicide cases.
Flies cannot chew food, so they eject digestive enzymes onto what they want to eat. When everything is nice and soft, they then slurp it up. (Sorry for the visual.) As gross as this sounds, this is not how bacteria is transported — That happens when a fly lands on something.
Note that flies don't poo every time they land on anything. Also they are very small, so they won't carry that much bacteria and if they only land on your food for a second, it won't get transferred across. ... So if a fly lands on your food, don't get too upset about it. Wave the fly off and continue to eat.
Ever. My uncle used to tell me that every time a fly lands, it poops. It turns out, that's not true, but anytime they land on your food, they're more than likely throwing up on it. ... Because flies can't chew (who knew?), they have to throw up enzymes onto their food, which dissolves the food so they may slurp it up.May 22, 2015
Well, flies eat some of the grossest things imaginable: Poop, garbage, rotting animal carcasses. Another fact about flies is that they can't chew, so in order to eat, they spit-up enzymes onto their food, which dissolves it and lets them slurp it up.Feb 13, 2018