But it would be another couple of million years before Ardi's descendants developed the large brains and higher intelligence that separates humans from the rest of the animal kingdom.
It is now clear that the expansion in brain size came long after the evolution of upright walking on two legs. You can find our Community Guidelines in full here. Want to discuss real-world problems, be involved in the most engaging discussions and hear from the journalists? Try Independent Premium free for 1 month.
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Timeline of human evolution
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Keep me logged in. Try Independent Premium free for 1 month See the options. You can form your own view. A fossil from Ethiopia is giving scientists their best look yet at an ancestor of the famed ancient skeleton nicknamed Lucy. It's from a male who lived 3. This most incredible discovery could help us find the answers to several important questions in the study of human evolution.
The fossils of these human ancestors, otherwise known as hominins, aren't usually found to be as old as this particular one here. Not to mention, most fossils that are found are merely fragments of bone that only give evolutionists a real headache as they attempt to analyze them. However, this very skull that was found in Ethiopia is completely different. It's intact for the most part and allows us to uncover many key details on how our earliest ancestors lived and adapted.