What aspect of fur does "density" refer to?

Density in the context of fur refers to the number of fibers that are present in a given area. A denser fur coat consists of a higher concentration of individual hairs, which contributes to various characteristics of the coat, such as warmth and texture. A dense coat can provide better insulation and is often associated with healthy animals.

Other aspects like softness, length, and color pertain to different attributes of fur. Softness relates to the texture and feel of the fur, while length refers to how long the individual fibers are, and color indicates the pigmentation of the fur. However, these characteristics do not directly define "density." Instead, density specifically captures the idea of how many fibers are packed together, which significantly influences the overall quality and effectiveness of the fur.