However, when two piebald patterned dachshunds do breed, the entire litter will exhibit the piebald appearance. (dogcare.dailypuppy.com)
For example, dogs can exhibit piebald patterns, or large black and white patches, which are never seen in wolves. (pbs.org)
The American bulldog has a thin single - coat exterior which can either be sporting red brindle, varying degrees of tan, fawn, white, red, brown, and piebald patterns. (bulldogmixes.com)