The avian respiratory system has been an area of biological interest for centuries, with zebra finches (Taeniopygia castanotis) emerging in recent decades as a primary avian model organism popularized across numerous disciplines. The pulmonary system of ...

Crocodile head scales self-organize through purely mechanical compressive skin folding rather than a patterning process controlled by gene interactions.

An investigation of the subpectoral diverticulum—an inflatable air sac structure between the major flight muscles—in 68 avian species reveals that the respiratory system has a role in the mechani...