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tracking dog
Tracking is a technique in which dogs are trained to locate certain objects by using the object's scent, for a variety of purposes.
Tracking has always been an essential skill for dogs to survive in the wild, through hunting and tracking down potential prey.〔Thesen, A., Steen, J. B., & Døving, K. B. (1993). Behaviour of dogs during olfactory tracking. ''Journal of Experimental Biology, 180'', 247-251.〕
==Physiological Mechanisms of Tracking==
Primarily, dogs use their sense of smell, to find and follow a track.〔Wells, D. L., & Hepper, P. G. (2003). Directional tracking in the domestic dog, ''Canis familiaris''. ''Applied Animal Behaviour Science, 84(4)'', 297-305.〕 Dogs have a highly sensitive olfactory system superior to humans,〔Weakley-Jones, B., & Rebmann, A. J. (2005). DOGS, USE IN POLICE INVESTIGATIONS. In Editor-in-Chief: Jason Payne-James (Ed.), ''Encyclopedia of forensic and legal medicine'' (pp. 221-223). Oxford: Elsevier.〕 and are able to discriminate between different human’s scents.〔Settle, R. H., Sommerville, B. A., McCormick, J., & Broom, D. M. (1994). Human scent matching using specially trained dogs. ''Animal Behaviour, 48(6)'', 1443-1448.〕 Moreover, dogs are also able to use visual cues to follow a track.〔Steen, J. B., & Wilsson, E. (1990). How do dogs determine the direction of tracks? ''Acta Physiologica Scandinavica, 139'', 531-534.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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