The giant garter snake is one of North America's largest native snakes, reaching up to 64 inches in length and endemic to California's Central Valley, where it originally inhabited natural wetlands.

One well-documented example of an arms race adaptation is the potent poison in the skin of the newt Taricha granulosa, which is food for the garter snake. Over time, some genetic variants of the ...

Breeding resumes briefly during September. LIFE CYCLE: Giant garter snakes emerge from over-wintering sites in the spring, when they begin foraging for food. Mating occurs in the spring and again ...