Dead rats can attract other rats. Rats are scavengers and will eat almost anything, including the carcasses of other rats. The smell of a dead rat can also signal to other rats that there is a food source nearby, leading them to investigate and potentially feed on the remains. In addition to attracting other rats, leaving a dead rat to decompose can also create an unsanitary and potentially hazardous environment. Decaying organic matter can attract flies, maggots, and other pests that can spread disease and produce a foul odor. If you discover a dead rat, it is important to properly dispose of the carcass and thoroughly clean the surrounding area to prevent the attraction of other rodents and the spread of disease. It is also important to identify and address any underlying pest control issues to prevent future infestations.