Is everything we know about the evolution and history of humanity wrong? Scientists have discovered ancient human skulls that suggest that we might've been wrong about the birthplace of modern humans all along.
The discovery of the skulls in Tbilisi, Georgia, has led some scientists to believe that humanity's ancestors may have spent some time outside of Africa — or possibly have evolved parallel to the previously accepted history of humanity, according to the Georgia National Museum's general director, Professor David Lordkipanidze:
Before our findings, the prevailing view was that humans came out of Africa almost 1 million years ago, that they already had sophisticated stone tools, and that their body anatomy was quite advanced in terms of brain capacity and limb proportions. But what we are finding is quite different... The Dmanisi hominins are the earliest representatives of our own genus – Homo – outside Africa, and they represent the most primitive population of the species Homo erectus to date. They might be ancestral to all later Homo erectus populations, which would suggest a Eurasian origin of Homo erectus.
Lordkipanidze presented his theory during a speech at the British Science Festival, suggesting that it's possible that Homo erectus evolved in Eurasia before migrating to Africa... and also that actual evolution of the human body may also not have gone as we'd previously thought:
In regards to the question of which came first, enlarged brain size or bipedalism, maybe indirectly this information calls us to think that body anatomy was more important than brain size. While the Dmanisi people were almost modern in their body proportions, and were highly efficient walkers and runners, their arms moved in a different way, and their brains were tiny compared to ours.
A Skull That Rewrites The History of Man [Independent.co.uk]