...George S. Bakken; Samantha E. Colayori; Taihung Duong SUMMARY The pitviper facial pit is a pinhole camera-like sensory organ consisting of a flask-shaped cavity divided into two chambers by a suspended membrane. Neurophysiological studies and simplified optical models suggest that facial pits...

...Aaron R. Krochmal; George S. Bakken; Travis J. LaDuc SUMMARY Pitvipers (Viperidae: Crotalinae) possess thermal radiation receptors, the facial pits, which allow them to detect modest temperature fluctuations within their environments. It was previously thought that these organs were used solely...