This is my dog "Marcus"The Jack Russell Terrier is a small, principally white-bodied, smooth-, broken-, or rough-coated terrier that has its origins in fox hunting. The name "Jack Russell" has been used over the years to describe a wide array of small white terriers. Jack Russell terriers are known for longevity and health due in a large part to a large gene pool. A well-cared-for Jack Russell can live well into its teens, remaining active right into its senior years. The typical lifespan is between 11 and 18 years.
DESCRIPTION
Jack Russell Terriers are sturdy and tough, measuring between 10" and 15". White in coloration (more than 51%) with black and/or tan markings, they exhibit a smooth, broken or rough coat. The skin can sometimes show a pattern of small black or brown spots, referred to as "ticking", that do not carry through to the outer coat. The Jack Russell should always appear balanced and alert. As the Jack Russell is primarily a working terrier, its most important physical characteristic is its chest size, which must not be so large that it prevents the dog from entering and working in burrows.
The red fox is the traditional quarry of the Jack Russell Terrier (JRT) so the working Jack Russell must be small enough to pursue its quarry. Jack Russells vary in size, but across the world they average about 14 pounds in weight and have a chest diameter of 12-14 inches at the widest.
Rough Coated Jack Russell Terrier
Smooth Coated Jack Russell Terrier
HISTORY
The small white fox-working terriers we know today were first bred by the Reverend John Russell, a parson and hunting enthusiast born in 1795. In his last year of university at Oxford, he bought a small white and tan terrier female called Trump from the milk man. Trump was purchased based upon appearance alone. She was the basis for a breeding program to develop a terrier with high stamina for the hunt as well as the courage and formation to chase out foxes that had gone to ground. An important attribute in this dog was a tempered aggressiveness that would provide them with the necessary drive to pursue and bolt the fox without resulting in physical harm to the quarry, effectively ending the chase, which was considered unsporting. This line of terriers developed by John Russell was well respected for these qualities and his dogs were often taken on by hunt enthusiasts. It is unlikely, however, that any dogs alive today are descended from Trump, as Russell was forced to sell all of his dogs on more than one occasion because of financial difficulty, and had only four aged (and non-breeding) terriers left when he died in 1883.
The small white fox-working terriers we know today were first bred by the Reverend John Russell, a parson and hunting enthusiast born in 1795. In his last year of university at Oxford, he bought a small white and tan terrier female called Trump from the milk man. Trump was purchased based upon appearance alone. She was the basis for a breeding program to develop a terrier with high stamina for the hunt as well as the courage and formation to chase out foxes that had gone to ground. An important attribute in this dog was a tempered aggressiveness that would provide them with the necessary drive to pursue and bolt the fox without resulting in physical harm to the quarry, effectively ending the chase, which was considered unsporting. This line of terriers developed by John Russell was well respected for these qualities and his dogs were often taken on by hunt enthusiasts. It is unlikely, however, that any dogs alive today are descended from Trump, as Russell was forced to sell all of his dogs on more than one occasion because of financial difficulty, and had only four aged (and non-breeding) terriers left when he died in 1883.
MY JACK RUSSELL
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