My answer to that question, having read nothing about it beyond this article, is "it sounds like a bit of a stretch, but what an interesting thing to think about". This theory about how humans and wolves (and later, dogs) teamed up to outcompete Neanderthals for food is being forwarded by anthropologist Pat Shipman, author of the new book, The Invaders: How Humans and Their Dogs Drove Neanderthals to Extinction.
Modern humans formed an alliance with wolves soon after we entered Europe, argues Shipman. We tamed some and the dogs we bred from them were then used to chase prey and to drive off rival carnivores, including lions and leopards, that tried to steal the meat.
"Early wolf-dogs would have tracked and harassed animals like elk and bison and would have hounded them until they tired," said Shipman. "Then humans would have killed them with spears or bows and arrows.
"This meant the dogs did not need to approach these large cornered animals to finish them off -- often the most dangerous part of a hunt -- while humans didn't have to expend energy in tracking and wearing down prey. Dogs would have done that. Then we shared the meat. It was a win-win situation."
At that time, the European landscape was dominated by mammoths, rhinos, bison and several other large herbivores. Both Neanderthals and modern humans hunted them with spears and possibly bows and arrows. It would have been a tricky business made worse by competition from lions, leopards, hyenas, and other carnivores, including wolves.
"Even if you brought down a bison, within minutes other carnivores would have been lining up to attack you and steal your prey," said Shipman. The answer, she argues, was the creation of the human-wolf alliance. Previously they separately hunted the same creatures, with mixed results. Once they joined forces, they dominated the food chain in prehistoric Europe -- though this success came at a price for other species. First Neanderthals disappeared to be followed by lions, mammoths, hyenas and bison over the succeeding millennia. Humans and hunting dogs were, and still are, a deadly combination, says Shipman.