Earlier studies have shown variation among experimental attempts to establish whether human monozygotic twins that are genetically identical also have identical individual scents. In none of the cases were the dogs able to distinguish all the individual scents of monozygotic twins living in the same environment if the scents were presented to them separately. Ten specially trained police German...

Background & Aims: Labor conditions cause stress and anxiety specifically in nulliparous women and hence the chance of a normal vaginal delivery is reduced. According to some studies lavender scent improves mood and reduces stress and anxiety. The purpose of this study was to investigate the effect of lavender scent on anxiety status in nulliparous women and also to determine changes in plasma ...

The influence of females on the amount of scent-marking behavior displayed by male Mongolian gerbils was investigated. Males isolated from females scent mark at a low level which increases more than two-fold if females are present in the room for three weeks without direct contact with the males. A similar increase is obtained by application of pooled female urine directly onto the males' noses.