Yawn of the tortoise.

• Localización: Scientific American, ISSN 0036-8733, Vol. 305, Nº. 6, 2011, págs. 28-28
• Idioma: inglés
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• Resumen

  • The article discusses research by Anna Wilkinson of the University of Lincoln in England and her colleagues investigating whether yawning requires empathy by training red-footed tortoises that lived together to yawn when exposed to a red square.