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Terrestrial garter snake Northern California, Sierra Nevada, and Coast Ranges south to Santa Barbara County. Isolated population in San Bernardino Mountains Thamnophis gigas: Giant garter snake Central Valley Thamnophis hammondii: Two-striped garter snake Coastal California south of Monterey Bay Thamnophis marcianus: Checkered garter snake
Most common garter snakes have a pattern of yellow stripes on a black, brown or green background, and their average total length (including tail) is about 55 cm (22 in), with a maximum total length of about 137 cm (54 in). [2] [3] The average body mass is 150 g (5.3 oz). [4] The common garter snake is the state reptile of Massachusetts. [5]
The main native predator of the California Coast Range newt is the common garter snake (Thamnophis sirtalis), some of which have apparently developed a genetic resistance or immunity to tetrodotoxin. Reproduction
Garter snake is the common name for small to medium-sized snakes belonging to the genus Thamnophis in the family Colubridae. They are native to North and Central America , ranging from central Canada in the north to Costa Rica in the south.
The common garter snake species is often found in mountainous areas, along coasts and even in sagebrush deserts, but are most common closer to water or in gardens. Common garter snakes have bright ...
The San Francisco garter snake, a subspecies of the common garter snake, is found in scattered wetland areas on the San Francisco Peninsula from approximately the northern boundary of San Mateo County south along the eastern and western bases of the Santa Cruz Mountains, at least to the Upper Crystal Springs Reservoir, and along the Pacific coast south to Año Nuevo Point, and thence to ...
Due to their toxicity, California newts have few natural predators. Garter snakes are the most common, and some species have developed a genetic resistance to tetrodotoxin. The mutations in the snake's genes that conferred resistance to the toxin have resulted in a selective pressure that favors newts that produce more potent levels of toxin.
The scientific name Thamnophis sirtalis sirtalis is a combination of Ancient Greek and New Latin that means "bush snake that looks like a garter strap". The generic name Thamnophis is derived from the Greek "thamnos" (bush) and "ophis" (snake) and the specific name sirtalis is derived from the New Latin "siratalis" (like a garter), a reference to the snake's color pattern resembling a striped ...