The large one will then swell due to internal gases. Bacteria are an important factor in the degradation of cells and tissues, which causes the release of fluids into body cavities. Gases such as hydrogen sulfide, methane, cadaverine and putrescine are usually found very smelly, but these gases help attract many insects. The buildup of gases caused by multiplying bacteria creates pressure and swells the body, pushing fluids out of cells and blood vessels. In this stage, the worms spread the bacteria, secreting digestive enzymes and tearing tissue. They transport themselves because the worms benefit from shared warmth and shared digestive secretions. Within 4-10 days, the pig becomes an attraction for many insects, and then the worms begin to feed under the skin. Stage four “black rot” 10-20 days after death. The body begins to collapse with cream-colored skin and black exposed surfaces. Some insects feed on body fluid smeared in the earth and consume meat. Body temperature begins to rise with insect activity. The bacteria will eventually consume the body if the insects are