...-to-right shunt, which purportedly increases pulmonary perfusion and plasma filtration in the respiratory area. This investigation addressed the role of compensatory vascular adjustments in the face of the metabolic alterations caused by T b change in the South American rattlesnake ( Crotalus durissus...

... only if the background pattern were resolved. Western rattlesnakes ( Crotalus oreganus ) displayed no statistically significant responses to targets presented in front of patterned backgrounds, regardless of the temperature contrasts or spatial frequencies within the background, but responded strongly...

... parameter being sensed and the mechanism by which the pit membrane detects the signal. As snakes are ectotherms, temperature also has a strong influence on neurological and locomotor responses to the signal. This study of Pacific rattlesnakes ( Crotalus oreganus ) systematically examined the effect of body...

.... A possible functional significance for this intra-cardiac shunt has been debated for almost a century. Unilateral left vagotomy rendered the single effective pulmonary artery of the South American rattlesnake, Crotalus durissus , unable to adjust the magnitude of blood flow to the lung. The higher constant...

... rates. In the present study, we investigated the possibility that endogenously derived heat,originating as a byproduct of the post-prandial increase in metabolism, could itself contribute to the elevated body temperature during digestion in the South American rattlesnake Crotalus durissus . We assessed...

... thermal radiation could also direct thermoregulatory behavior by remotely sensing nearby surface temperatures. Using a series of behavioral arenas of varying spatial complexity and ecological relevance, we surveyed the ability of the western diamondback rattlesnake Crotalus atrox to direct successful...

.... In this study, we used sonomicrometry and electromyography to test the relative contributions of energy reduction and energy recycling strategies in the tailshaker muscles of western diamondback rattlesnakes ( Crotalus atrox ). We found that tailshaker muscle contractions produce a mean strain of 3%, which...

... morphology kinematics rattlesnake Crotalus atrox. The prey-capture system of venomous snakes is one of the most specialized feeding mechanisms among vertebrates. The biomechanics and kinematics of prey ingestion have been documented from several snake taxa, although the full diversity...