A garter snake is a type of non-venomous snake that lives in North America. They’re known for their dark coloring and three stripes: one on the back and one on each side. These animals can also have different colors and patterns depending on their location. Some garter snakes have red or yellow stripes, while others have green or blue stripes., garter snake, (genus Thamnophis), any of about 35 species of nonvenomous North American snakes having a striped pattern suggesting a garter: typically, one or three longitudinal yellow to red stripes, between which are checkered blotches. Forms in which the stripes are obscure or lacking are often called grass snakes. Some classifications differ as to the number of species, since garter snakes , Eastern Garter Snake. The eastern garter snake (Thamnophis sirtalis sirtalis) has a darker body with lighter yellow stripes. On the other hand, the common garter snake generally has darker stripes on a lighter background color. Care Sheet. Size of the Enclosure: The babies can be kept in 5-gallon tanks. The adults need 15-gallon ones., Garter snakes are relatively harmless, beneficial predators of rodents and insect pests. However, do not pick one up. If it is alarmed, it may give you a little nip (harmless but still a bite). Learn to identify snake species as well. There are venomous species that can be dangerous if provoked or startled. Pit vipers such as water moccasins , Garter snakes are non-venomous snakes known for their slender bodies and vibrant colors. They are typically 18 to 54 inches long and have distinct markings on their skin, which vary depending on the species and geographic location. Garter snakes are active during the day and are often seen near water sources such as lakes, ponds, and streams., Garter snake heads are wider than their necks, and their tongues are red, tipped in black. The scales of the common garter snake are keeled, meaning they have a raised ridge along their length. Habitat and Distribution. Common garter snakes inhabit most of North America. While common garter snakes are highly adaptable and capable of surviving .