the shadow of the smaller and smaller peaks seems to also touch/trace thinner and thinner lines, these lines seem very different compared to the actual animal d

the shadow of the smaller and smaller peaks seems to also touch/trace thinner and thinner lines, these lines seem very different compared to the actual animal depictions in other Nazca lines. Could these lines be explained by diffrent rates of photosynthesis / occasional vegetation debsity variations selectively protecting the soil from erosion? One nature demarcates curves, humans and animals will adapt to them in their choice of path.