Virtually all animals with a backbone yawn, but scientists don’t know what purpose it serves or why yawns are so contagious. Experts discuss what’s known and what’s behind a yawn.
Guest Information:
- Dr. Robert Provine, Professor of Psychology, University of Maryland-Baltimore County and author, Curious Behavior: Yawning, Laughing, Hiccuping and Beyond
- Dr. Andrew Gallup, Assistant Professor of Psychology, SUNY Oneonta
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