House fly
matter, such as food waste, carrion or feces, over the course of three to four days. Development time for all Musca domestica life stages is temperature-dependent [...] Believed to have originated in central Asia, the insect expanded its range worldwide long ago as a commensal organism to human populations; the housefly [...] typically only mate once and retain the sperm for future egg fertilization. When protein-rich food is available, she will lay up to 500 eggs in several batches