Are both Jack Russell Terrier and Bullmastiff types of dogs?
Jack Russell Terrier The Jack Russell Terrier is a small terrier that has its origins in fox hunting. It is principally white-bodied and smooth, rough or broken-coated but can be any colour.
Toy Group Toy Group is the name of a breed group of the smallest kinds of dogs, used by kennel clubs to classify a defined collection of dog breeds. "Toy Group" does not necessarily refer to one particular type of dog. Most major English-language kennel clubs include a "Toy Group" although different kennel clubs may not include the same breeds in their "Toy Group". The international kennel club association, the Fédération Cynologique Internationale, includes toy dogs in Group 9 "Companion and Toy Dogs", which is then further broken down into eleven "Sections" based on dog type and breed history.