Called Paranthropus capensis, it was a more slender member of the Paranthropus genus - a close relative of modern humans (homo sapiens ... by robust jaw and skull bones and was a muscular ...

robustus had a large, "robust" (heavier, thicker) skull, as well as a jaw and large ... boisei walked upright. Homo habilis, which actually means "handy man," is apparently the first species ...