The Terrier Breed group includes,
American Staffordshire Terrier
Kerry Blue Terrier
Miniature Bull Terrier
Soft Coated Wheaten Terrier
Wire Fox Terrier
Some characteristics of the Terrier Breed group include a high need for daily physical and mental exercise and tenacity. This group was bred to be very active, and to not only hunt vermin, but to not back down from them when attacked. This breed can be especially difficult for a first time dog owner. Terriers were bred to route out small critters and therefore like to dig and hunt. This breed of dogs is very alert and agile. If these dogs are not provided with significant physical and mental exercise in a manner similar to what they were bred for (hunting), it is possible that they may become dog and/or animal aggressive.
To learn more information and for a full list of the Terrier Breed group please visit the American Kennel Club's website.