Ключевые слова: ancestors, ancient, ancient ancestors, ancient artifacts, ancient civilization, ancient cultures, ancient heritage, ancient society, ancient times, archaeological, archaeological site, cave dwellers, cavemen, civilization, early civilization, early communities, early humans, early society, heads, hidden, hiding, hiding behind rocks, historical, human evolution, human history, neolithic, peeking, peeking out, peering, people, prehistoric, prehistoric heads, primitive, primitive culture, primitive people, rocks, stone age, stone age culture, stone tools, tribal, tribal culture,