The researchers built this digital skull mostly with open-source software. They started from open-access videos and images released by the Max Planck Institute. They also used a CT scan of a modern adult human skull as a reference model.

Using a technique called anatomical deformation, the team digitally stretched and adjusted the modern reference skull until its contours matched the ancient fossil. This approach gave them a complete digital skull in regions where the actual bones had eroded or never survived.

What does the brain tell us?

With the digital skull finished, the researchers turned to the brain. They fitted their reconstruction inside the skull cavity and extracted a virtual endocast—a 3D model of the impression left by the brain on the inner bone surface. That endocast measured 1,364 milliliters in volume.

Converting that figure to standard brain volume gave 1,230 cubic centimeters. That number sits comfortably within the normal range for modern human males, suggesting early Homo sapiens at Jebel Irhoud already possessed brains roughly the size of ours.

Why two versions of the same face?

The reconstruction came in two distinct forms:

• A grayscale, hairless model built from bone alone, designed for anatomical study without distracting details.
• A full-color digital portrait with skin tone, lighting, hair, and a beard, designed to help general audiences see the hominin as a living human being.

The team stressed that the lifelike additions—especially hair and skin pigmentation—were artistic interpretations. Those traits do not survive in the fossil record, so the researchers relied on anthropological conventions for ancient North African populations to guide their choices.

How reliable is the result?

The reconstruction carries the usual limits of fossil-based facial work. No complete face survived at Jebel Irhoud, and the team assembled the composite skull from fragments of multiple individuals rather than one person.

The resulting portraits show a plausible early Homo sapiens rather than an exact likeness of a single real individual.

Even so, the open-access pipeline could travel well beyond this one face. The authors argue that other researchers can use similar methods to reconstruct incomplete ancient fossils elsewhere. Digital facial reconstruction may soon become a standard tool in many more paleoanthropology labs.

The findings appear in Heritage (DOI: 10.3390/heritage9090369).