Neanderthals Walked Upright Just Like the Humans of Today

Researchers have shown that Neanderthals walked upright just like modern humans, (Image: via pixabay / CC0 1.0)

Neanderthals are often depicted as having straight spines and poor posture. However, these prehistoric humans were more similar to us than many assume. University of Zurich researchers have shown that Neanderthals walked upright just like modern humans, thanks to a virtual reconstruction of the pelvis and spine of a very well-preserved Neanderthal skeleton found in France.

An upright, well-balanced posture is one of the defining features of Homo sapiens. In contrast, the first reconstructions of Neanderthals made in the early 20th century depicted them as only walking partially upright. These reconstructions were based on the largely preserved skeleton of an elderly male Neanderthal unearthed in La Chapelle-aux-Saints, France.

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Changing perspectives

Since the 1950s, scientists have known that the image of the Neanderthal as a hunched over caveman is not an accurate one. Their similarities to ourselves — both in evolutionary and behavioral terms — have also long been known, but in recent years the pendulum has swung in the opposite direction.

“Focusing on the differences is back in fashion,” says Martin Haeusler, UZH specialist in evolutionary medicine. For instance, recent studies have used a few isolated vertebrae to conclude that Neanderthals did not yet possess a well-developed double S-shaped spine.

However, a virtual reconstruction of the skeleton from La Chapelle-aux-Saints has now delivered evidence to the contrary that Neanderthals walked upright. This computer-generated anatomical model was created by the research group led by Martin Haeusler from the University of Zurich and included Erik Trinkaus from Washington University in St. Louis.

The researchers were able to show that both the individual in question, as well as Neanderthals in general, had a curved lumbar region and neck — just like the humans of today.

Skeletons indicate that Neanderthals walked upright.
Virtual reconstruction of the skeleton found in La Chapelle-aux-Saints, based on high-resolution 3D surface scans of the spine and pelvis. (Image: Martin Häusler, UZH)

Sacrum, vertebrae, and signs of wear as evidence that Neanderthals walked upright

When reconstructing the pelvis, the researchers discovered that the sacrum was positioned in the same way as in modern humans. This led them to conclude that Neanderthals possessed a lumbar region with a well-developed curvature. By putting together the individual lumbar and cervical vertebrae, they were able to discern that the spinal curvature was even more pronounced.

The very close contact between the spinous processes — the bony projections off the back of each vertebra — became clear, as did the prominent wear marks that were in part caused by the curvature of the spine. All of this indicates the neanderthals walked upright.

Recognizing similarities

Wear marks in the hip joint of the La Chapelle-aux-Saints skeleton also indicated that Neanderthals walked upright with a posture similar to that of modern humans. Haeusler said:

This finding is also supported by analyses of other Neanderthal skeletons with sufficient remnants of vertebrae and pelvic bones. Haeusler explained that:

Provided by: University of Zurich [Note: Materials may be edited for content and length.]

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