Regardless, Jack Russells are always on the smaller size, but don't let their short stature fool you into thinking they are shy and retiring! Some have longer legs than others and are known as Parson Jack Russell Terriers in England. Jack Russells can vary a bit in size, but generally can be up to 35cm tall.
However, if you have done your research and feel ready to own a Jack Russell, you are in for a fun and entertaining time. Consequently, owners should be aware that these hunting instincts are still strong in the breed! This is a spirited dog that needs an experienced hand to match its strong personality and cheeky nature.
The breed was developed in Devon, England in the 17th Century for the purpose of fox hunting. The Jack Russell Terrier is a brave little dynamo with the confidence of a big dog in a small dog's body.