Answer: They have hyperrobust chewing muscles and broad, flat molars.
Step-by-step explanation:
Homo erectus also called upright man which is the extinct species of humans which is of African origin. They possessed modern human like proportions that have enlongated legs and shorter arms which is an adaptations on land. They are similar to modern man with high brain capacity and height. They had a thicker skull bone and a very robust skeleton. They show an increasing reliance on on cultural adaptation. They show increase hunting proficiency.