What is indicated by a strong supraorbital torus?

A strong supraorbital torus, also known as a brow ridge, is primarily an indication of physical traits associated with certain hominid species, particularly those that lived in earlier evolutionary stages. The prominent brow ridge typically suggests a robust cranial structure that serves various functions, such as providing strength to the skull and possibly playing a role in the protection of the eyes.

In anthropological and archaeological contexts, examining the supraorbital torus can help researchers understand aspects of evolutionary biology, including the adaptations and lifestyle choices of different hominid species. Certain species, like Neanderthals, are characterized by this feature, which is linked to their environment, diet, and social behaviors.

The other options do not directly relate to the physical traits represented by a strong supraorbital torus. While complex language capabilities, adaptation for bipedalism, and the development of social structures are important aspects of hominid evolution, they are not specifically indicated by the presence of a strong brow ridge.