So Hobbes was wrong?
No, Hobbes was right in saying that primitives, especially tribes, are in a constant state of "warre" -- by which he meant they were extremely territorial, desiring to expand territory and defend it to the death. There were some "band"-level organizations which were perhaps a little less rigid.
However, I have seen nothing to convince me that australopithecus was anything but a large species of chimp.
Yes, Hobbes was right; and so was Calvin (on human nature being riddled with hubris and concupiscence -- neither of which is conducive to much peace). :)