Ключевые слова: ancient, animal silhouettes, archaeology, artwork, assembly, black, brain teaser, brown, cave art, challenge, craftsmanship, creativity, culture, educational, engaging, entertainment, figures, fossil appearance, fun, game, handson activity, history, hobby, illustration, interactive, interlocking, intricate, jigsaw, leisure, motifs, mural, pastime, pattern, pieces, play, prehistoric, puzzle, puzzle pieces, recreation, silhouette, stone texture, textured, tribal, tribal art, wall art,