Why Human Jawbones Shrink so Rapidly in Evolution Scale?

Abstract

Deliberations are presented on the cause of human jawbones shrinking. It is argued that an interplay of the geometry of the sphenoid bone and the MYH16 gene mutation is the likely reason of decreasing ofhuman faces. The basicranial-flexion angle distribution of the new sample of 337 Central European patients is analyzed and compared with existing data from other continents.