Data from: Pulmonary anatomy in the Nile crocodile and the evolution of unidirectional airflow in Archosauria.

Emma R. Schachner, John R. Hutchinson, C. G. Farmer & CG Farmer
The lungs of birds have long been known to move air in only one direction during both inspiration and expiration through most of the tubular gas-exchanging bronchi (parabronchi). Recently a similar pattern of airflow has been observed in American alligators, a sister taxon to birds. The pattern of flow appears to be due to the arrangement of the primary and secondary bronchi, which, via their branching angles, generate inspiratory and expiratory aerodynamic valves. Both the...
1 citation reported since publication in 2013.
449 views reported since publication in 2013.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?
87 downloads reported since publication in 2013.

These counts follow the COUNTER Code of Practice, meaning that Internet robots and repeats within a certain time frame are excluded.
What does this mean?