
The Jack Russell Terrier is a small terrier that has its origins in fox hunting in England. It is principally white-bodied and smooth, rough or broken-coated and can be any color.
Calculate AgeSmall dogs typically age more slowly after maturity, with many reaching 15-20 years of age. They tend to develop quickly in their first few years. Large dogs tend to have shorter lifespans but mature more slowly.
Regular veterinary check-ups are essential for monitoring your dog's health as they age. Proper nutrition, exercise, and dental care can significantly impact your dog's lifespan and quality of life.