This document discusses the stages of decomposition that occur with a dead body over time, as well as factors that can affect the decay process. It begins with anaerobic bacteria breaking down cells, followed by blowflies and beetles laying eggs which hatch into maggots that feed on the tissues. Later stages involve other insects like cheese flies, coffin flies, and beetles as the body dries out. Forensic entomology uses the insect evidence to estimate time of death based on the lifecycle stages found.