What specific texture do the scales of the adult sand viper possess?
Answer
Keeled
The physical characteristics of the sand viper are finely adapted to its environment, extending to the texture of its scales. These scales are distinctly keeled, meaning they have a ridge running down the center, which results in a somewhat rough surface texture rather than a smooth, reflective sheen. This roughness, combined with the snake's mottled coloration of sandy, brownish, or grayish tones, enhances its ability to blend seamlessly with the surrounding desert floor, making it virtually invisible when stationary against the local dune grains.
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