Pheromones are chemical signals that animals, including humans, release into the environment to communicate with others of their species. These substances can influence behavior, such as attracting mates or marking territory. For example, when a female moth releases pheromones, it can attract male moths from a distance, helping them find each other for reproduction. In humans, pheromones may play a role in social interactions and attraction, although their effects are still being studied. Some researchers believe that pheromones can affect mood and even influence decisions, making them an intriguing area of research in psychology and biology.