What is one reason that scientists believe that the emergence of our tool-making capabilities and the emergence of language mutually reinforced one another?

Question

Quizplus · Accepted Answer

Scientists believe that the emergence of tool-making capabilities and the emergence of language mutually reinforced one another because the same brain parts are involved in the controlled movement of hands, fingers, lips, teeth, breath, and tongue. This overlap in brain areas suggests that the development of language and tool-making went hand-in-hand.

What Is One Reason That Scientists Believe That the Emergence