A feedback loop is a process where the output of a system is fed back into the system as input, influencing future behavior. This can occur in various contexts, such as in ecological systems, where the population of a species can affect its environment, which in turn impacts the species' growth and survival. There are two main types of feedback loops: positive and negative. A positive feedback loop amplifies changes, leading to exponential growth or decline, while a negative feedback loop counteracts changes, promoting stability. Both types are essential for understanding how systems self-regulate and evolve over time.