How many lungs do most snake species have?

Most snake species typically have one functional lung. This is due to their elongated bodies and specialized physiology. Snakes have adapted to have a single, elongated lung that extends along much of their body, rather than two separate lungs like mammals. This adaptation allows for more efficient gas exchange given their unique body structure and method of locomotion.

While some snakes may have a reduced second lung or vestigial structures, the primary lung is highly developed and serves the needs of the snake effectively. Understanding this unique anatomical feature is crucial, especially in the context of how snakes interact with their environment and manage their respiratory needs.