This species lives in the swamps, marshes, and slow-moving rivers of South America, particularly in countries like Paraguay, Bolivia, Argentina, and Brazil. It thrives in warm, wet environments where it can spend much of its time in the water. Yellow Anacondas are semi-aquatic, meaning they split their time between land and water—but they’re definitely more at home in the shallows. Their excellent swimming skills and natural camouflage help them hide in plain sight, both from predators and from prey.