The note of 'fur' is primarily an olfactory evocation, a textural scent rather than a singular ingredient. It often presents as a warm, dry, slightly musky, and subtly animalic aroma. Imagine the soft, dense feel of clean animal pelt – not overtly dirty or urinous, but carrying the inherent warmth of a living creature. There's an underlying dryness, sometimes a whisper of dustiness, intertwined with a gentle, lived-in musk that can lean slightly leathery or even subtly metallic in some interpretations. Its intensity is typically moderate, acting as a profound textural undercurrent rather than a piercing top note. It evolves slowly, deepening into the composition, often revealing its nuances more fully in the heart and base. Its projection is usually intimate, creating a comforting aura, and its longevity is excellent, anchoring other notes with its persistent warmth.