As apes and humans evolved,an anatomical strut shifted the arms from the front to the side of the body.What is this strut called?

Question

Quizplus · Accepted Answer

The anatomical strut that shifted the arms from the front to the side of the body is the clavicle, also known as the collarbone. This change in anatomy allowed for a wider range of motion in the arms and the ability to walk upright on two legs.

As Apes and Humans Evolved,an Anatomical Strut Shifted the Arms