A comparative analysis of actinopterygian and sarcopterygian aerial buccal pumps indicates that the primitive pattern of air transfer differs fundamentally between these two clades. Actinopterygian ...

The green iguana, which does not fly or do anything more athletic than an occasional sprint, has the simplest lungs yet found to produce a version of birds’ high-performance one-way airflow. The lungs ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Birds: They’re just like us. Except their lungs are small in ...

We explore the physical and structural challenges that face gas exchange surfaces in vertebrates and insects, by focusing on the role of the surfactant system. Pulmonary surfactant is a complex ...

New research suggests a multimillion year gap in the colonization of Earth's land by marine creatures might have been caused by a sharp drop in atmospheric oxygen. Vertebrate creatures first began ...

Research into cardiovascular physiology in nonmammalian vertebrates reveals a remarkable array of adaptative features that underpin effective oxygen delivery and metabolic regulation under diverse ...