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New Fossil Proves Scientists Were Wrong About Human Evolution

A newly discovered fossil has shattered conventional assumptions about human evolution, proving that various prehistoric human-like skulls that scientists had previously classified as separate species (separate branches in the evolutionary chain) are, in fact, the same species.

One fossil in particular, which had a smaller than expected brain casing, has caused many scientists to call into question the conventional scientific understanding of the human evolutionary tree.

The Guardian reports:

Anthropologists unearthed the skull at a site in Dmanisi, a small town in southern Georgia, where other remains of human Homo erectus skull found in Georgiaancestors, simple stone tools and long-extinct animals have been dated to 1.8m years old.

Experts believe the skull is one of the most important fossil finds to date, but it has proved as controversial as it is stunning. Analysis of the skull and other remains at Dmanisi suggests that scientists have been too ready to name separate species of human ancestors in Africa. Many of those species may now have to be wiped from the textbooks…

The odd dimensions of the fossil prompted the team to look at normal skull variation, both in modern humans and chimps, to see how they compared. They found that while the Dmanisi skulls looked different to one another, the variations were no greater than those seen among modern people and among chimps.

The scientists went on to compare the Dmanisi remains with those of supposedly different species of human ancestor that lived in Africa at the time. They concluded that the variation among them was no greater than that seen at Dmanisi. Rather than being separate species, the human ancestors found in Africa from the same period may simply be normal variants of H erectus

Read the full story here.

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(Image of Homo Erectus courtesy of Georgian National Museum)

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