1. Scala Naturae;Encyclopedia of Animal Cognition and Behavior;2022
2. Galen and the Beginnings of Western Physiology;Essays on the History of Respiratory Physiology;2015
3. Galen and the beginnings of Western physiology;American Journal of Physiology-Lung Cellular and Molecular Physiology;2014-07-15
4. Why the Hand?;Advances in Experimental Medicine and Biology;2009
5. Fetal lung development in the elephant reflects the adaptations required for snorkeling in adult life;Respiratory Physiology & Neurobiology;2003-11