Researchers have recently indicated the latter was unlikely, instead speculating that it may have had a role in social signalling between archaic human individuals, enhancing friendly or aggressive facial expressions.
Most ideas concentrate on its role as a feature that strengthened the skull or helped dissipate forces passing through the skull. Researchers have recently indicated the latter was unlikely, instead speculating that it may have had a role in social signalling between archaic human individuals, enhancing friendly or aggressive facial expressions.