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| | Jack Russell Terrier, Parson Russell Terrier - Canada's Guide to Dogs - Breeds (Site not responding. Last check: ) |
 | | The JRT is adaptable, however, he was bred to be a hunting dog and, as such, does require plenty of outdoor activity and exercise. |
 | | It should also be noted that Jack Russells can be aggressive toward other dogs and small animals including cats, gerbils, hamsters, guinea pigs, etc. The breed is fearless and known to take on an adversary twice or more his size. |
 | | The Jack Russell is a happy, bold, energetic dog with a suprisingly gentle and kind nature. |
| www.canadasguidetodogs.com /jackrussell.htm (885 words) |
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