A marine biologist in full diving gear studies corals in the sea, surrounded by vibrant reef life. Sunlight filters through clear turquoise water, casting dappled patterns across branching staghorn, brain coral, and soft anemones. The biologist holds a waterproof clipboard and pencil, bubbles rising as they take notes, while schools of colorful fish swirl around. Ultra‑detailed, photorealistic textures, sharp focus on both diver and corals, cinematic wide‑angle composition, dramatic underwater lighting, National Geographic documentary photography style.