Various studies have established the importance of olfactory cues in t
he relational systems between conspecifics by the canids and humans. T
he study of the behaviour of dogs towards children with clothes impreg
nated with body odours has led to the definition of different function
s of olfaction in interspecific relational systems. An experimental si
tuation in kennels details the behaviour of dogs in response to differ
ent combinations of visual and olfactory stimulations reproduced with
a realistic child dummy. The discussion of the results deals with the
contingent socio-cognitive abilities of pet dogs and their relational
strategies based on the integration of different sensory modalities pr
esent in the 'social' stimulations.