Vibrissae are highly refined vibrotactile receptors that are present on most mammals. The Golden hamster exhibits three different behaviours of its mystacial, supraorbital, and genal vibrissae. During rest, all the vibrissae are reclined and motionless. When hamsters are alert, the vibrissae are partly or fully erect and essentially motionless. During active investigation, the mystacial vibrissae “whisk” or “sweep” through antero–posterior excursions. The genal vibrissa moves only slightly in periodic erection. The supraorbital vibrissae carry through a wide erection arc and have limited excursions with movements of the upper eyelid. The mystacial vibrissae whisk quickly (about 16 sweepsls). Whisking is divisible into contact (relatively high amplitude, low frequency), non–contact (relatively low amplitude, high frequency), and double–pump (combination contact and non–contact) types, and can be either bilaterally symmetric or asymmetric. The dimensions of the mystacial territory around the snout change throughout whisking due to coordinated changes in the shape of the mystacial pad and the tilting of the vibrissae relative to the pad. Such differential movements have implications for sensory physiology as they point to an ability for fine sensory monitoring of the environment.