Ключевые слова: ancient, artifact, beard, carving, carvingtool, cave, caveman, cavemanwork, chiseling, development, dirt, discovery, dust, earlyhuman, earth, evolution, focus, focused, force, ground, hammer, hardwork, history, humanhistory, intense, invention, loincloth, man, muscle, oldage, prehistoric, primitive, progress, raw, serious, shaping, shapingrock, sitting, smart, stone, strength, strong, survival, thinking, tool, tribe, wheel, wild, working,