title: Commentary: Yawning, acute stressors, and arousal reduction in Nazca booby adults and nestlings.
authors.affiliation: Department of Psychology, State University of New York at Oneonta Oneonta, NY, USA.
authors.forename: Andrew C
authors.initials: AC
authors.lastname: Gallup
authors.affiliation: Department of Biological Sciences, Binghamton University Binghamton, NY, USA.
authors.forename: Anne B
authors.initials: AB
authors.lastname: Clark
keywords: contagious yawning; corticosterone; stress; thermoregulation; yawning