Plains Garter Snake

Thamnophis radix

The Plains garter snake (Thamnophis radix) is a non-venomous colubrid serpent native to North America's central plains, extending from Canada through the United States. This slender snake typically measures around 18 to 28 inches in length, with a distinctive appearance marked by three longitudinal stripes: a prominent yellow or orange stripe running down its back, flanked by two additional lighter lateral stripes on a dark, often olive green or brown background. Plains garter snakes have keeled scales, giving them a rough texture, and their heads are slightly wider than their necks. Known for their adaptability, they inhabit a variety of environments, including grasslands, marshes, and even suburban areas, often near water sources. Their diet primarily includes amphibians, small fish, and invertebrates. Active during the day, they play a critical role in the ecosystem as both predator and prey. The Plains garter snake's behavior is generally docile, and while they might emit a musk if threatened, they are more likely to flee than confront perceived threats. Their ability to thrive across diverse habitats reflects their resilience and adaptability.