It's only natural

• Autores: Robert R Provine
• Localización: New scientist, ISSN 0262-4079, Nº. 2908, 2013, págs. 34-36
• Idioma: inglés
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• Resumen

  • Provine explores human's curious behaviors--the likes of the fart, hiccup, itch and yawn. Whatever the purpose of a spontaneous yawn--and this remains hotly contested--the most extraordinary property of human yawning is its contagiousness. Yawns are so catching that almost anything associated with them can stimulate more yawns, including seeing, hearing, reading about, or even thinking about yawning.