Following the lizard lung labyrinth

ScienceDaily
Dec 14, 2019, 12:25 pm217 pts
Birds and mammals are on extreme ends of the airflow spectrum. Mammals inhale oxygen-rich air and they exhale depleted air, exhibiting a so-called tidal flow pattern. In contrast, bird breath travels tidally through part of the respiratory system, but in a one-way loop throughout most of the lung. Biologists…

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