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Under normal conditions the female blowflies (i.e. blue bottles and green bottles) lay their eggs on dead animals, the smell of which can attract them from a distance of several kilometers. They also lay eggs on other decomposing matter and on feces.

The eggs hatch in less than a day and the larvae burrow straight down into the food source. They grow very rapidly and will be full size within a about a week, and then they will normally leave the carrion. If the larvae have no opportunity to bury themselves in the ground they will crawl around until they find a suitable place in which to pupate.

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15y ago

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