The common garter snake (Thamnophis sirtalis) is found throughout North America. In the South, it is active year round. In the North, it is active during the warmer months but hibernates during the winter. It is commonly found basking on warm rocks during cool mornings. This lifestyle indicates that the snake is probably

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The common garter snake is ectothermic, meaning it relies on external sources of heat to regulate its body temperature, as indicated by its behavior of basking on warm rocks.

The Common Garter Snake (Thamnophis Sirtalis) Is Found Throughout North