The Collie grew out of Scottish sheep-herding dogs and was refined in Victorian Britain into the elegant dog most Americans know from Lassie. There are two varieties of one breed: the Rough Collie, with its flowing mane and frill, and the Smooth Collie, with a short, sleek coat. Both have a dense double coat and a long, wedge-shaped head.
Many Collies are gentle, sensitive and closely tuned to their families, with a long reputation as patient companions for children. Herding instincts can show up as barking, circling or nudging at running kids. In Chattanooga's warm, wet climate, plan for heavy seasonal shedding, regular brushing, daily exercise and a vet who knows about the MDR1 drug sensitivity common in the breed. Each dog varies, so spend time with a Collie before deciding.