This photograph by National Geographic photographer Roy Toft captures a serene forest stream in the United States. A fallen log, covered in green moss and clusters of layered fungi, lies across the stream, its brown and cream tones contrasting with the smooth, silky flow of water created by long exposure. The image highlights the delicate balance of forest ecosystems, where fungi play a vital role in decomposition. The tranquil atmosphere and detailed textures showcase the quiet beauty of nature's intricate cycles.