Sled dogs , known also as sleightman dogs , sledge dogs , or sleddogs are types of dogs that are used to pull a wheel-less vehicle on runners -LRB- a sled or sleigh -RRB- over snow or ice , by means of harnesses and lines .

Sled dogs , known also as sleigh dogs , sledge dogs or sleddogs are types of dogs that are used to pull a wheel-less vehicle on runners -LRB- a sled or sleigh -RRB- over snow or ice , by means of harnesses and lines .
