Australopithecus sediba — a small hominin species that lived about 2 million years ago — had a mix of ape-like and human-like features, while Homo naledi — a recently-discovered hominin species that lived between about 335,000 and 236,000 years ago — had a unique pattern of bone thickness, suggesting different loading patterns and possible grip types, according to new research led by Dr. Samar Syeda from the American Museum...
