Figure 2
From: Histological, chemical and behavioural evidence of pedal communication in brown bears
Typical gas chromatogram (A) of the pedal swabs of a brown bear (Ursus arctos), and (B) magnified fragments of chromatograms of an adult male (blue) and an adult female (red) brown bear with observed certain differences in profile peaks with retention time 38.4 and 39.04 minutes. Retention times correspond with those given in Table 1. The x-axis is the retention time in minutes and the y-axis is the abundance in mega counts per second (MCps) scale.
