A raw, unedited, ultra-realistic National Geographic action photograph of a massive, muscular mountain cougar standing on the edge of a wet, jagged granite cliffside during a violent mountain thunderstorm. The cougar's dense, tan-colored fur is hyper-detailed, with individual hairs clumped together by real water droplets and fine mountain mist reflecting the environment. Its intense, piercing green-yellow eyes are locked directly onto the camera lens with a fierce predator gaze. In the background, a dramatic night sky is split open by a colossal, authentic fork of purple and blue forks of lightning, casting brilliant, sharp cinematic reflections on the wet rocks and the animal's powerful body. Heavy volumetric rain and dense grey fog billow through the mountain valley below, creating an incredible depth of field. Shot on a professional high-speed 200mm telephoto lens, f/2.8, ISO 600, authentic shutter speed capturing rain in mid-air, natural light scattering, 32k resolution, unreal engine 5.5 path-tracing fidelity, sharp focus on the cougar's intense face, breathtaking, undisputed realism.