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Reptile thermoregulation often involves avoiding the hottest hours because direct solar radiation can increase body temperature beyond acceptable levels. Thus, many reptiles feed opportunistically while actively thermoregulating. However, we observed an ambush forager, the Timber Rattlesnake (Crotalus horridus) remaining in the same foraging location for hours or days while frequently exposed to direct solar radiation. We questioned how an ectothermic ambush forager relying on crypsis and immobility for foraging success could remain motionless for extended periods while frequently exposed to direct solar radiation? What mechanisms do rattlesnakes have that may help offset these daily heat loads? Inquiring minds want to know.