Procambarus clarkii, commonly known as the red swamp crayfish, is a freshwater crustacean native to the southeastern United States. It is easily recognized by its reddish coloration and large claws. This species thrives in various aquatic environments, including swamps, ponds, and rivers, and is known for its adaptability to different conditions. The red swamp crayfish plays a significant role in its ecosystem, serving as both predator and prey. It feeds on detritus, plants, and small animals, contributing to nutrient cycling. Additionally, Procambarus clarkii is often used in aquaculture and is a popular bait in fishing, highlighting its economic importance.