Ключевые слова: age, ancestor, ancestry, ancient, animal, anthropology, ape, australopithecus, black, caveman, change, chimpanzee, concept, cromagnon, darwin, development, drawing, evolution, evolve, graphic, grow, growth, guitarist, history, hominid, homo, human, humanity, illustration, isolated, man, mankind, monkey, neanderthal, people, person, prehistoric, primate, primitive, profile, progress, silhouette, spear, theory, time, walk,