We propose that conversion of the large browridges of our immediate ancestors to a more vertical frontal bone in modern humans allowed highly mobile eyebrows to display subtle affiliative emotions. (nature.com)
The gender is also unknown, but the skull's massive browridges suggest the early hominin may have been male. (discovermagazine.com)
In addition to being tiny, the bones display traits that are typically associated with earlier members of our genus, including pronounced browridges and a nonprojecting chin. (scientificamerican.com)