Which dog breed is larger, Whippets or Jack Russell Terriers?
Whippet: The Whippet (also English Whippet or Snap dog) is a dog breed of medium-size. Whippet:  Shown in the Hound group, Whippets have relatively few health problems other than arrhythmia. Whippet:  Whippets also participate in dog sports such as lure coursing, agility, and flyball.
i don't know