Terrier is a type of dog rather than one breed. The name comes from the Latin word for earth, because these dogs were developed to hunt rats, foxes and other vermin, often by following them into burrows. Dozens of breeds share the label, and terrier-like dogs of mixed ancestry, often with Jack Russell, Rat, Cairn, Schnauzer or Chihuahua in the mix, are common in adoption listings.
Most are small to medium, with wiry or smooth coats and a confident outlook. Many are loyal, affectionate and funny, though barking, digging, chasing small animals and a stubborn streak are common. In Muskegon, where city code requires a habitually barking dog to be kept inside, early training matters. A dog's size, coat and energy depend on its ancestry, so the listing details and a meeting say more than the label.