Movie 1

Videos show Andean (top), bar-headed (center), and barnacle geese (bottom) rotating CT scans with or without skeletons. Lungs (yellow), cranial air sacs (red), caudal air sacs (blues), trachea (cyan), and skeleton (dark yellow) are shown.

Respiratory mechanics and morphology of Tibetan and Andean high-altitude geese with divergent life histories

Julia M. York, Miriam Scadeng, Kevin G. McCracken, and William K. Milsom

Journal of Experimental Biology 2018. 221:None-None; doi: 10.1242/jeb.170738