Australopith

The incisors are more similar in size to the molars compared to earlier australopiths—a condition which is also more humanlike. The limb bones indicate A. garhi had small stature like earlier australopiths.

Most authorities would nowadays concur that the australopiths were generally committed to habitats with at least some trees, to which they were more or less tied for sleeping and for shelter from predators during the day, as well as for a large part of their sustenance.

Later we'll consider how these principles apply to australopith craniofacial function, but first let's review briefly how different australopiths accommodated large teeth and big masticatory muscles, and how they grew large, buttressed faces.