Klippt från guardian.co.uk "Dr Anna Wilkinson of the University of Lincoln, winner of the 2011 Ig Nobel in physiology, spent six months training a red-footed tortoise called Alexandra to yawn on command. She then used the trained tortoise to work out whether other tortoises would yawn whenever Alexandra did. Contagious yawning is common in humans and scientists think it might be controlled by empathy, since it requires an understanding of the emotional state of another individual to "catch" a yawn." Länk till hela artikeln. http://www.guardian.co.uk/science/2011/sep/30/wasabi-fire-alarm-ig-nobel-prize?newsfeed=true Kort och gott, en sköldpaddas gäspningar smittar inte till andra sköldpaddor... :-) /Anders