How do artists use veining in marble to suggest animal musculature?

Artists have long harnessed the natural veining in marble to create stunningly realistic depictions of animal musculature. By carefully selecting marble blocks with veins that mimic the flow and texture of muscles, sculptors enhance the lifelike quality of their work. The veins act as organic guides, allowing the artist to carve along these lines to suggest tension, movement, and anatomical precision. This technique is especially prominent in classical and Renaissance sculptures, where the interplay of light and shadow on the veined surface adds depth and dynamism. Masterpieces like Michelangelo's "David" or the "Horse Tamers" in Rome exemplify how veining transforms cold stone into vibrant, sinewy forms, blurring the line between art and nature.