So what do these new discoveries mean relative to human evolution? Humans, after all, appeared far more recently than the 225 ...
That puts the ape in the right place on the timeline. More importantly ... along a trajectory of hominid evolution that ...
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.
The most primitive hominid yet found, this species has more chimpanzee-like features than any other human ancestor. Ardipithecus ramidus may have walked upright. Other fossils discovered with A.