Are the English Cocker Spaniel and Jack Russell Terrier large dog breeds?
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.
Working terrier A working terrier is a small type of dog which pursues its quarry into the earth. According to the "Oxford English Dictionary", the name dates back to at least 1440, derived from French "chien terrier" 'digging dog', from Medieval Latin "terrarius", ultimately from Latin "terra" (earth).