What is one of the key traits of a rabbit's satin fur?

One of the key traits of a rabbit's satin fur is that it has a sheen due to its hair structure. Satin fur is characterized by a unique and smooth texture that results in an eye-catching luster. This sheen arises because the individual hairs have a particular structure that reflects light, making the fur appear shinier compared to that of other breeds. This distinctive quality not only enhances the rabbit's appearance but also indicates well-maintained health and grooming.

The other traits listed do not accurately describe satin fur. For instance, the length of the fur is not a defining characteristic of satin fur, and it does not absorb heat better than other types of fur. Additionally, while satin rabbits can come in various colors, their sheen is the hallmark trait, rather than a specific darkness in color.