Why do through domed and saddle backed tortoises of the same species look different?

The differences in appearance between domed and saddle-backed tortoises of the same species are primarily due to their adaptations to distinct ecological niches. Domed tortoises, found in wetter environments with abundant vegetation, have a rounded shell that provides protection and allows them to access low-lying foliage. In contrast, saddle-backed tortoises, which inhabit drier regions with taller vegetation, have a shell that is more elongated and allows them to stretch their necks higher to reach food. These variations are a result of evolutionary pressures that favor traits enhancing survival and resource acquisition in their respective habitats.