The large browridges and the ridge at the back of the skull of Homo ergaster are
A) larger in females than in males.
B) needed to buttress the skull against novel stresses created by an increased emphasis on tearing and biting.
C) characteristic of australopithecines as well.
D) smaller than those seen in australopithecines.

Question

Quizplus · Accepted Answer

The large browridges and the ridge at the back of the skull of Homo ergaster are needed to buttress the skull against novel stresses created by an increased emphasis on tearing and biting. This feature is not unique to Homo ergaster but is also seen in other early hominin species.

The Large Browridges and the Ridge at the Back of the Skull