Modern humans bred with predecessors in Africa

NewYorkCountryLawyer writes: "Based on a new analysis of old skulls, it now appears that modern humans may have interbred with some earlier hominid species, suggesting that human evolution took a more complex path than previously thought. The study opines that modern humans lived side by side with the older species. Paleontologists disagree over the meaning of the findings, or whether they have any substantial significance at all."