A Simple Reason for a Big Difference: Wolves Do Not Look Back at Humans, but Dogs Do.

摘要: The present investigations were undertaken to compare interspecific communicative abilities of dogs and wolves, which socialized humans at comparable levels. first study demonstrated that wolves able locate the place hidden food indicated by touching and, some extent, pointing cues provided familiar human experimenter, but their performance remained inferior dogs. In second study, we have found that, after undergoing training solve a simple manipulation task, are faced with an insoluble version same problem look/gaze human, while do not. Based on these observations, suggest key difference between dog wolf behavior is dogs' ability look human's face. Since looking has important function in initializing maintaining interaction communication systems, suppose positive feedback processes (both evolutionary ontogenetically) readiness face lead complex forms dog-human cannot be achieved even extended socialization.