- Provine, Robert R. Curious Behavior: Yawning, Laughing, Hiccupping, and Beyond (Harvard University Press; 2012) 246 pages; examines the evolutionary context for humans
- Yawn article in Scholarpedia.
- Why Do We Yawn? The unexpected truth behind the science of yawning, LiveLeak (originally aired on Good Morning America), 30 July 2007
- A Real Yawner: Causes, Concerns and Communications of the Yawn, Mary Bridget Reilly, University of Cincinnati, 23 October 2003