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Brow ridges, or supraorbital tori, are prominent bony structures located above the eyes in many ape species. They serve various functions, including providing structural support for the skull and protecting the eyes from sunlight and debris. In evolutionary terms, pronounced brow ridges are often associated with robust facial structures and indicate adaptations to different environmental pressures. In contrast, modern humans have reduced brow ridges, reflecting changes in diet, social behavior, and cranial capacity.

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1mo ago

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Homo sapiens have a larger brain size, higher forehead, reduced brow ridges, and a more rounded skull compared to Homo erectus. Homo erectus skulls typically have thicker cranial bones, a longer and lower skull shape, and prominent brow ridges.


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