Timber rattlesnakes play an important part of many ecosystems by keeping the populations of small mammals in check. Rattlesnakes have highly developed heat sensors near their mouths, and their eyes are adapted for vision in dim light. The timber rattlesnake is the only rattlesnake located in the northeastern U.S. Sensory Organ of Timber Rattlesnake: These species have sensory openings, sensitive to temperature on either sides of their face.. Positive Impacts; controls pest population; Economic Importance for Humans: Negative. Rattlesnake adaptations include the ability to sense faint vibrations caused by prey, an extremely sensitive sense of smell, teeth that prevent prey from escaping, and a tail that rattles and scare away intruders. Anti-predator Adaptations; cryptic; Economic Importance for Humans: Positive. Rattle of Timber Rattlesnake: One of the unique characteristics of this snake is the rattle.The rattle consist of hornlike sections that are attached in …