Whom I love, I heard this person the other day
http://www.coasttocoastam.com/show/2011/11/26 Paul A. Trout (book link), retired professor at Montana State University, for a discussion on how ancient mythology about animal predators in search of human flesh has factual roots based on mankind's early history. He traced this concept back to the Pleistocene Era, when the human species was living and evolving on the African savanna. During that time, Trout said, humans lived amongst predatory creatures, like sabre toothed tigers and birds of prey, that were far more massive than their contemporary counterparts. He cited archaeological evidence which indicates that human beings were frequently eaten by these creatures, who likely saw man as easy prey, since they had yet to develop weapons to defend themselves.
Among the predatory creatures from the Pleistocene Era that Trout detailed were giant snakes that had a diameter of 18 inches and weighed 800 pounds as well as a bird of prey which weighed 50 pounds and could lift humans off the ground. Additionally, he said, there were massive dogs, weighing 200 pounds, that hunted in packs of fifty and bears that had skulls which were 3 to 4 times the size of a modern grizzly bear. Given this extreme preponderance of predatory creatures, Trout observed that our ancestors living in this environment would likely witness "stacks of bones littering the landscape" and hear the sounds of not only victims of these predatory animals but also their calls to each other while on the hunt. "It must have been very unnerving for our ancestors to live within this milieu," Trout mused, "that was nosy with death and littered with corpses, bones, and kill sites."
So, he did talk about the "brilliant" Joseph Campbell, but thought that Campbell had missed our existence as prey to various creatures, as opposed to just "the hunter." After listening to him, I think he is on to something. There are places in African now where people are afraid to go out at night, because of animals preying on them.
Campbell is a true genius, but I would have loved to have heard a dialogue between these two people.