The Newfoundland dog is a large working dog. They can be either black, brown, or white-and-black . However, in Canada, the country of their origin, the only correct colours are either black or Landseer.They were originally bred and used as a working dog for fishermen in the Newfoundland .They are known for their giant size, intelligence, tremendous strength, calm dispositions, and loyalty. Newfoundland dogs excel at water rescue/lifesaving because of their muscular build, thick double coat, webbed feet, and innate swimming abilities