Past, Modern Man Linked — Neanderthal man may have built structures, indicating that he was far more advanced than formerly believed and implying that he may have evolved into Cromagnon man. Evidence uncovered at the Molodova site in the Ukraine … is a circle of mammoth animal bones [that] date … to the time of Neanderthal man, some 50,000 to 70,000 years ago. Directly above this site are similar bone circles dating from … less than 35,000 years ago, when man had already made his appearance. Post holes indicate that modern or Cromagnon man would cover a large area … with one single structure. … It is logical to assume that the early “man” also built structures. — Science News Letter, Dec. 25, 1965
Update
Archaeological evidence suggests that Neandertals used tools and had sophisticated culture, but scientists are still debating what happened to them. One theory is that Neandertals were cousins of modern humans, either a subspecies or a separate species, that went extinct by 30,000 years ago. Neandertals, the theory goes, sometimes bred with modern humans outside of Africa, leaving behind a genetic trace. Others say that Neandertals were actually an archaic population of Homo sapiens that was absorbed into modern populations and rather than going extinct, live on in human DNA.