Nebelungs are mild, soft-spoken, and gentle. They are generally reserved around strangers, ranging from hiding-under-the-bed timid to warily eyeing intruders from a safe distance. Given humans’ unpredictable behavior, this could be interpreted as a sign of extreme intelligence. To their family, Nebelungs are like Russian Blues, affectionate and playful although not intrusive. They tend to bond with a select few humans and stay loving and devoted throughout their lives. The primary difference in conformation between the Nebelung and the Russian Blue is coat length, otherwise, the standards are almost identical. Even with a dense undercoat that makes the coat stand away from the body, the fur resists matting and does well with a good once-a-week brushing.