And this list is getting longer. As scientists discover new fossils, the hominid family tree grows new branches. But fossils are often difficult to categorize neatly as one species or another.

In Ethiopia, they found hominid skull, jaw, and arm bones plus a few teeth that dated back to 4.4 million years ago. That would make these the oldest hominid ancestors yet identified, and the most ...

where some of paleoanthropology's most iconic fossils have been found The history of anthropology is littered with many now-defunct hominid species that no longer have a place on the human family ...