Peking man also seems to have eaten plant food, for there are hackberry seeds in the debris of the cave. His tools were made of sandstone and quartz and sometimes of a rather bad flint. As we’ve already seen, they belong in the chopper-tool tradition. It seems fairly clear that some of the edges were chipped by right-handed people. There are also many split pieces of heavy bone. Peking man probably split them so he could eat the bone marrow, but he may have used some of them as tools. Many of these split bones were the bones of Peking men. Each one of the skulls had already had the base broken out of it. In no case were any of the bones resting together in their natural relation to one another. There is nothing like a burial; all of the bones are scattered. Now it’s true that animals could have scattered bodies that were not cared for or buried. But splitting bones lengthwise and carefully removing the base of a skull call for both the tools and the people to use them. It’s pretty clear who the people were. Peking man was a cannibal. * * * * * This rounds out about all we can say of the life and times of early prehistoric men. In those days life was rough. You evidently had to watch out not only for dangerous animals but also for your fellow men. You ate whatever you could catch or find growing. But you had sense enough to build fires, and you had already formed certain habits for making the kinds of stone tools you needed. That’s about all we know. But I think we’ll have to admit that cultural beginnings had been made, and that these early people were really _men_. MORE EVIDENCE of Culture [Illustration] While the dating is not yet sure, the material that we get from caves in Europe must go back to about 100,000 years ago; the time of the classic Neanderthal group followed soon afterwards. We don’t know why there is no earlier material in the caves; apparently they were not used before the last interglacial phase (the period just before the last great glaciation). We know that men of the classic Neanderthal group were living in caves from about 75,000 to 45,000 years ago. New radioactive carbon dates even suggest that some of the traces of culture we’ll describe in this chapter may have lasted to about 35,000 years ago. Probably some of the pre-neanderthaloid types of men had also lived in caves. But we have so far found their bones in caves only in Palestine and at Fontéchevade. THE CAVE LAYERS