![No word in the scientific lexicon is more evocative than Neanderthal.](/web/20160708113907im_/http://www.smh.com.au/content/dam/images/g/q/0/g/1/l/image.related.articleLeadwide.620x349.gq0fs1.png/1467899729937.jpg)
No word in the scientific lexicon is more evocative than Neanderthal. Photo: Neanderthal Code/History Channel
London: Belgian Neanderthals were eating each other some 40,000 years ago, new research shows.
The grisly discovery was made in a cave where scientists found bones bearing marks left by intentional butchering.
Not only were they cannibals, but the Neanderthals appear to have fashioned tools out of the bones of their own kind.
![The 'Panel of Hands' stencils in the El Castillo Cave, Spain, are believed older than 40,800 years.](/web/20160708113907im_/http://www.smh.com.au/content/dam/images/g/q/0/g/1/i/image.related.articleLeadwide.620x349.gq0fs1.png/1467899729937.jpg)
The 'Panel of Hands' stencils in the El Castillo Cave, Spain, are believed older than 40,800 years. Photo: AP/File
Neanderthals were a human subspecies that lived in Europe and western Asia for hundreds of thousands of years before becoming extinct between 30,000 and 40,000 years ago.
Their disappearance followed the arrival of Homo sapiens, ancestors of people living today, from Africa.
Evidence shows that the two kinds of humans interbred, and up to four per cent of the DNA of modern Europeans and Asians is believed to have been inherited from Neanderthals.
![A Neanderthal cave site in Pech-de-l'Aze, south-western France, where a 50,000-year-old bone tool was found.](/web/20160708113907im_/http://www.smh.com.au/content/dam/images/g/q/0/g/1/f/image.related.articleLeadwide.620x349.gq0fs1.png/1467899729937.jpg)
A Neanderthal cave site in Pech-de-l'Aze, south-western France, where a 50,000-year-old bone tool was found. Photo: AP
The bones uncovered from the Goyet caves near Namur in Belgium bore cut marks, pits and notches signifying butchery, said researchers writing in the journal Scientific Reports.
It appears to have been a thorough process.
There is evidence of skinning, cutting up, and extraction of bone marrow.
![A bone tool smaller than a person's hand was found during excavations at the Neanderthal site of the Abri Peyrony ...](/web/20160708113907im_/http://www.smh.com.au/content/dam/images/g/q/0/g/1/7/image.related.articleLeadNarrow.300x0.gq0fs1.png/1467899729937.jpg)
A bone tool smaller than a person's hand was found during excavations at the Neanderthal site of the Abri Peyrony project in France. Photo: AP/File
Lead scientist Professor Herve Bocherens, from the University of Tubingen in Germany, said: "These indications allow us to assume that the Neanderthals practised cannibalism.
"The many remains of horses and reindeer found in Goyet were processed the same way."
Other hints of Neanderthal cannibalism have emerged previously in Spain and France.
Four bones from Goyet clearly suggest that Neanderthals also used the remains of their deceased as tools.
One thigh bone and three shin bones were used to shape stone implements.
In a similar way, animal bones were often used as knapping tools.
PA