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 ...

Take a deep breath in. Slowly let it out. You have just participated in one of the most profound evolutionary revolutions on Earth--breathing air on land. It's unclear how the first vertebrates ...

COLUMBUS, Ohio – Scientists have found the secret to felines’ finesse at sniffing out food, friends and foes. A complex collection of tightly coiled bony airway structures gets the credit, according ...

Meteorological data from a network set up to study local air pollution problems were used to study local air flow patterns at Louisville, Ky., an urban area located in a region of relatively minor ...

Take a deep breath in. Slowly let it out. You have just participated in one of the most profound evolutionary revolutions on Earth--breathing air on land. It's unclear how the first vertebrates ...