75,000-Year-Old Spear Wound Suggests Lethal Neanderthal Fighting Was Common

A nearly perfectly preserved 75,000-year-old Neanderthal shoulder blade, lifted in one piece from beneath eight metres of rock and sediment in an Iraqi cave, carries a wound that may rewrite what we know about violence among our closest evolutionary cousins. The 15-millimetre circular hole punched through the bone is, according to a team of Cambridge archaeologists, the earliest known evidence of a fatal wooden-spear attack on a member of the human family — and a sign that lethal Neanderthal-on-Neanderthal fighting may have been far more common than scientists have long assumed.

The discovery at Shanidar Cave

The remains, known to researchers as Shanidar A, were excavated from Shanidar Cave in the Zagros Mountains of Iraqi Kurdistan — a site famous for evidence of what appear to be ritual Neanderthal burials. The partial skeleton belonged to an individual aged in the mid-40s, whose sex the researchers could not determine. The left shoulder blade, or scapula, is a broad, flat bone so thin in places that it becomes almost translucent when held up to light; that fragility makes its survival for 75 millennia, under 7.5 metres of rock and sediment, little short of extraordinary.

The study, led by biological anthropologist Emma Pomeroy of the University of Cambridge and published in the journal Scientific Reports, focused on the single circular perforation in the bone. The team's forensic-style analysis concludes it was made by a sharpened wooden spear rather than one tipped with flint or stone. A stone tip would have left a flatter, more angular opening and microscopic mineral traces; the smooth, round hole points to wood — a material Neanderthals are known to have shaped into formidable hunting weapons for taking down large mammals.

The spear's path through the body tells a story of deliberate, lethal intent. It entered the left side of the chest from the front, passed through the pectoral muscles, the ribcage and the lung, likely severing major arteries, before punching through the shoulder blade and out the back. Death would have come within moments. Tiny shards of bone displaced by the weapon show that the spear came in from above at a downward angle, and the researchers were able to piece part of the hole back together using those fragments, guided by faint ridges where muscle had marked the bone.

Why scientists think it was deliberate — and aimed at the heart

Distinguishing murder from misadventure in a 75,000-year-old skeleton is an exercise in careful elimination. Accidents leave different signatures: a fall might crack ribs on one side, a hunting mishap with a large animal would typically produce crushing or goring injuries to the front of the body at unpredictable angles. This wound is different in almost every respect.

First, the beveling around the hole is characteristic of an exit wound — the bone splintered outward as the spear punched through from the front, the way forensic pathologists read entry and exit wounds in modern cases. Second, the downward trajectory and frontal entry, combined with the force required to drive a spear through the chest cavity and out the shoulder blade, suggest a deliberate thrust rather than a glancing blow or a falling accident. Third, the location lines up with what hunters call a "heart shot": a strike placed to puncture the heart or the great vessels for a rapid kill.

Pomeroy herself has been careful to note that the heart-shot interpretation is somewhat speculative, but the underlying logic is sound. Neanderthals were expert hunters who used this exact technique on prey animals, and they would have known precisely where a spear needed to land to kill quickly. Whether the blow was struck in a moment of rage, in a ritualised fight, or as a mercy killing of an already-weakened individual, the evidence of a forceful, downward, frontal spear thrust is difficult to explain any other way.

Violence — and compassion — in the same bones

Remarkably, the same skeleton tells a second, gentler story. Alongside the fatal wound, Shanidar A bears signs of an earlier, non-fatal injury that appears to have healed — an injury severe enough that the individual would have needed care from others to survive it. The juxtaposition has drawn widespread attention: here is a Neanderthal community apparently capable of both nursing an injured member back to health and, at some point, driving a spear through another's chest.

That duality cuts to the heart of the modern Neanderthal debate. For much of the 20th century, Neanderthals were caricatured as brutish cavemen. In recent decades the pendulum swung hard the other way: evidence of burials, ochre use, jewellery and care for the injured painted a picture of sensitive, social beings. The Shanidar A findings suggest the truth is more complicated — and more recognisably human. A species can be both compassionate and violent, often within the same community.

What this changes about the Neanderthal story

Until now, the fossil record has offered only a handful of ambiguous hints of interpersonal violence among Neanderthals — a few healed head injuries here, a possible spear wound in a rib there, each open to alternative explanations. Because the Shanidar A wound is so clean, so clearly an exit wound from a wooden spear, and so evidently fatal within moments, it provides the strongest single piece of evidence yet that Neanderthals killed each other with their hunting weapons.

The broader implication is that lethal fighting may have been a regular feature of Neanderthal life rather than a freak occurrence. Wooden spears rarely survive from deep prehistory — the famous waterlogged examples from Schöningen in Germany date to around 200,000 years ago, and the oldest known example, a pointed tip from Clacton-on-Sea in the UK, is more than 400,000 years old. But the weapons themselves were commonplace, and if they were regularly turned on other Neanderthals, the scarcity of evidence may simply reflect how rarely the circumstances of preservation align: a thin scapula surviving intact for 75,000 years is the exception, not the rule.

There is also a methodological legacy. The team's approach — treating the bone like a modern forensic case, reading beveling, fragment displacement and muscle markings to reconstruct trajectory and intent — offers a template for re-examining older Neanderthal remains with fresh eyes. Skeletons sitting in museum drawers for decades could yet yield new testimony about how these people lived and died.

FAQs

What exactly did scientists find in the Shanidar Cave skeleton?

Researchers excavating Shanidar Cave in Iraqi Kurdistan recovered a partial Neanderthal skeleton, dubbed Shanidar A, dating to about 75,000 years ago. Its left shoulder blade — a fragile bone thin enough in places to let light through — survived almost intact under 7.5 metres of rock and sediment, bearing a single 15mm-wide circular hole. A Cambridge team led by Emma Pomeroy concluded the hole was an exit wound from a sharpened wooden spear driven through the victim's chest, and published the findings in Scientific Reports.

How do scientists know the wound came from a wooden spear, not a stone-tipped one?

The shape of the hole is the key. A spear tipped with flint or stone would punch a flatter, more angular opening and leave microscopic mineral shards embedded in the bone. The Shanidar A perforation is smooth and nearly perfectly circular, consistent with a sharpened wooden shaft. Wood was the Neanderthals' primary spear material for hunting large mammals, and while wooden weapons almost never survive from this period, the wound they leave behind can outlast them by tens of thousands of years.

Could the injury have been an accident rather than violence?

The researchers argue that an accident is very unlikely. The beveling around the hole is typical of an exit wound, showing the spear travelled from the front of the chest through to the back. The downward angle of entry, the force needed to pass through the ribcage and lung, and the frontal placement all point to a deliberate thrust rather than a fall or a hunting mishap. The location also resembles a hunter's "heart shot" — a technique Neanderthals used on prey — though Pomeroy cautions that this specific interpretation remains somewhat speculative.

What does this change about how we see Neanderthals?

It complicates the picture. Recent decades have emphasised Neanderthal compassion — burials, ornament-making, care for the injured — and Shanidar A itself shows signs of an earlier healed injury that would have required nursing. But this is now the clearest evidence yet that Neanderthals also killed each other with hunting weapons, suggesting lethal interpersonal violence may have been more common than the sparse fossil record has let on. The emerging view is of a species as capable of violence as of tenderness — recognisably human in its contradictions.

Why is this the "earliest" evidence of a wooden-spear killing?

Older wooden spears exist — the Schöningen spears are around 200,000 years old and a pointed tip from Clacton-on-Sea is over 400,000 years old — but those are weapons, not victims. What makes Shanidar A special is that it pairs a precisely datable human victim (about 75,000 years old) with forensic evidence of a fatal wooden-spear attack. No earlier hominin skeleton shows such clear evidence of being killed by a wooden spear, making this the oldest documented case of this specific kind of lethal violence in the human family.