lunes, 23 de agosto de 2010

Los dingos: algo queda de su vida con los humanos

Anim Cogn. 2010 Mar;13(2):367-76. Epub 2009 Sep 25.

Dingoes (Canis dingo) can use human social cues to locate hidden food.

Smith BP, Litchfield CA.

School of Psychology, University of South Australia, St Bernards Road, Magill, SA 5072, Australia. Bradley.Smith@unisa.edu.au

Abstract

There is contention concerning the role that domestication plays in the responsiveness of canids to human social cues, with most studies investigating abilities of recognized domestic dog breeds or wolves. Valuable insight regarding the evolution of social communication with humans might be gained by investigating Australian dingoes, which have an early history of domestication, but have been free-ranging in Australia for approximately 3500-5000 years. Seven 'pure' dingoes were tested outdoors by a familiar experimenter using the object-choice paradigm to determine whether they could follow nine human communicative gestures previously tested with domestic dogs and captive wolves. Dingoes passed all cues significantly above control, including the "benchmark" momentary distal pointing, with the exception of gaze only, gaze and point, and pointing from the incorrect location. Dingo performance appears to lie somewhere between wolves and dogs, which suggests that domestication may have played a role in their ability to comprehend human gestures.

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