Flies are attracted to meat and will lay eggs on the meat, where they quickly hatch into maggots. But the flies are not indigenous to the meat.
Redi used a jar, meat and gauze. The gauze kept the flies off the meat. Redi's hypothesis was that if you kept flies away from the meat, maggots would not appear, because the flies did not lay eggs on the meat.
no it doesnt
Rotting meat doesn't create flies. Rotting meat attracts flies that lay their eggs on the meat. These eggs hatch and maggots emerge and proceed to feed off the rotten meat. After a period as a chrysalis, the maggots change and emerge as adult flies.
because they always appear where meat is rotting
Flies will often lay eggs on spoiled meat because they are attracted to the smell of the meat. The meat will provide a place for the eggs to incubate and also a source of food once the larvae hatch.
In the 1600's, the Italian scientist Francisco Redi performed experiments that showed that flies did not spontaneously generate from raw meat.
Flies dude. Lots of flies.
redi?
Yes, if flies lay eggs in exposed rotting meat their larva will feed themselves until developed and then turn into new flies. If the rotting meat is not exposed the flies will not be able to lay eggs and there will be no emerging flies.
Those flowers are pollinated by flies, which are attracted to the smell of rotting meat. Yuck.
Pasteur