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The San Francisco garter snake (Thamnophis sirtalis tetrataenia), however, has been on the endangered list since 1969. Predation by crayfish has also been responsible for the decline of the narrow-headed garter snake (Thamnophis rufipunctatus). [19] Many breeders have bred all species of garter snakes, making it a popular breed.
Eastern garter snakes average between 46–66 cm (18–26 in) long. The largest recorded length was 124 cm (48.7 in) long. Females are typically larger than males. They are either a greenish, brown, or black color and have a distinct yellow or white stripe. The eastern garter snake is broadly considered non-venomous.
Garter snakes do not exhibit mimicry or aposematic coloration; relying on cryptic coloration for protection, they will freeze until they know they are spotted, then attempt a stealthy departure. [18] The decision of a juvenile garter snake to attack a predator can be affected by whether the snake has just eaten or not. Snakes that have just ...
4. Milk Snakes. Size: 2-4 feet on average Lifespan: 15-20 years Milk snakes are another species of colubrid (the same family that corns and garter snakes belong to) that make for popular "starter ...
S. d. texana-Texas brown snake; S. occipitomaculata—red bellied snake; Tantilla gracilis—flat-headed snake [2] T. nigriceps—black-headed snake; Thamnophis cyrtopsis—black-necked garter snake; T. elegans—wandering garter snake; T. marcianus—checkered garter snake; T. proximus—western ribbon snake; T. radix—plains garter snake
In red-sided garter snakes, the breeding season usually begins in early spring and lasts for about a month. [9] These snakes exhibit a polygynous mating system, which means that males mate with multiple females each season. [14] During the mating season, male snakes form a mating ball near the dens and court females as they emerge. [4]
The plains garter snake (Thamnophis radix) is a species of garter snake native to most of the central United States as far north as Canada and as far south as Texas.It has a distinctive orange or yellow stripe from its head to tail, and the rest of its body is mainly a gray-green color.
The Texas garter snake has a greenish-black back with a distinctive bright-orange or red stripe down the center, and yellowish stripes on either side of the body that extend through the second, third, and fourth rows of dorsal scales above the belly plates. [1] Adults range in total length (including tail) from 38 to 71 cm (15 to 28 in). [1]