How might the uniformly dark, melanistic coloration aid the Zebra Cobra's survival?

It offers superb camouflage amongst dark soil or deep shadows in dense bushveld environments

The variation in coloration, specifically the existence of uniformly dark, melanistic forms, provides a significant evolutionary advantage depending on the immediate environment. In areas characterized by dense bushveld, dark soil, or deep shadows, a snake that lacks distinct striping can blend seamlessly into the background. This excellent cryptic camouflage aids the snake immensely both while it is actively hunting for prey and when it is resting and needs concealment from potential predators. This highlights how flexibility in appearance allows the species to adapt effectively to diverse substrates across its geographical distribution.