This Changes Everything: One-Million-Year-Old Skull in China Reveals New Clues About Human Lineages and Alters Evolution Theories

Written by Romário Pereira de Carvalho

Published on 29/09/2025 at 10:24

Divulgação/Xiaobo Feng

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Reconstruction of the Yunxian 2 Skull, 1 Million Years Ago, Reveals Similarities with Homo Longi and Suggests That Human Lineages Coexisted and Separated in Very Short Intervals, Altering the Evolutionary Timeline

After decades of uncertainties, a fossil excavated in China has gained a new interpretation. It is the Yunxian 2 skull, discovered in 1990 in Hubei province, which has now been reconstructed using computed tomography.

The study, published in the journal Science last Thursday (25/9), reignites debates about the trajectory of the human species.

The Re-discovery of the Yunxian 2 Skull

For a long time, it was believed that this skull belonged to a Homo erectus. However, this view was overturned after detailed analysis of the cranial structure.

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The Scientific Impact of the Discovery

According to Chris Stringer, a paleoanthropologist at the Natural History Museum in London, the clade of Homo longi may have persisted for over one million years. This longevity pattern has also been recorded in Neanderthals and Homo sapiens themselves.

Therefore, the discovery reinforces the idea that various lineages evolved in parallel, adapting to different environmental contexts.

The statistical comparison of 57 fossil skulls indicated that the separations between lineages were relatively close in time.

First, the Neanderthals, around 1.38 million years ago. Next, Homo longi, at 1.2 million. And finally, Homo sapiens, approximately 1.02 million years ago.

Lineages in Parallel

The short interval between these divisions shows that multiple human groups emerged almost simultaneously.

Moreover, the scenario reinforces the hypothesis that severe climate changes acted as a driver for rapid adaptation and, in some cases, extinction.

For Xijun Ni, a paleoanthropologist at the Chinese Academy of Sciences, these humans lived in small isolated populations and had to adjust to varied environments.

This would have influenced both their survival and extinction.

Yunxian 2 Skull: What Needs to Be Investigated

Although the reconstruction of Yunxian 2 represents a milestone, it does not end the debate. New studies will be necessary to definitively confirm the position of this fossil in the evolutionary tree.

What is already clear is that the discovery broadens the understanding of human diversity and challenges simplified explanations of our origins.

With information from Metrópoles.

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This Changes Everything: One-Million-Year-Old Skull in China Reveals New Clues About Human Lineages and Alters Evolution Theories

Reconstruction of the Yunxian 2 Skull, 1 Million Years Ago, Reveals Similarities with Homo Longi and Suggests That Human Lineages Coexisted and Separated in Very Short Intervals, Altering the Evolutionary Timeline

The Re-discovery of the Yunxian 2 Skull

The Scientific Impact of the Discovery

Lineages in Parallel

Yunxian 2 Skull: What Needs to Be Investigated

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This Changes Everything: One-Million-Year-Old Skull in China Reveals New Clues About Human Lineages and Alters Evolution Theories

Reconstruction of the Yunxian 2 Skull, 1 Million Years Ago, Reveals Similarities with Homo Longi and Suggests That Human Lineages Coexisted and Separated in Very Short Intervals, Altering the Evolutionary Timeline

The Re-discovery of the Yunxian 2 Skull

The Scientific Impact of the Discovery

Lineages in Parallel

Yunxian 2 Skull: What Needs to Be Investigated

Engineers want to carve through Africa with a giant canal to bring water from the world’s second-largest river to a dying lake on the edge of the Sahara Desert that has already lost 90% of its water.

A giant brown band visible from space, approximately 8,850 kilometers long, connected Africa to America in the Atlantic Ocean, and satellites revealed that it is neither land nor pollution, but the largest accumulation of seaweed in the world, which broke records in 2025.

Instead of burning or burying old tires, an American city is transforming about 2,000 of them into the street itself, paving its first sections with a quieter and more durable rubber asphalt.

In just one cast, fishermen are surprised to capture 14,096 mullets in Bombinhas and close a historic season with 58,000 fish; scene recorded in the Santa Catarina paradise marks the last day of the 2026 season.

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