Uploaded August 2026 | Updated September 2026, 3 hours ago
The Jack Russell Terrier is a perfect example of why size tells you almost nothing about intensity.
These dogs were bred to hunt and kill vermin.
That means serious tenacity.
A huge prey drive.
And a lot of energy packed into a very small body.
When a Jack Russell doesn’t get enough stimulation or activity, that pent-up energy can turn into frustration and reactivity pretty quickly.
So while they may be small, they’re not necessarily low-maintenance.
This is a breed that needs outlets for the drive they were built with.
Follow for more dog training tips.
The Jack Russell Terrier is a perfect example of why size tells you almost nothing about intensity.
These dogs were bred to hunt and kill vermin.
That means serious tenacity.
A huge prey drive.
And a lot of energy packed into a very small body.
When a Jack Russell doesn’t get enough stimulation or activity, that pent-up energy can turn into frustration and reactivity pretty quickly.
So while they may be small, they’re not necessarily low-maintenance.
This is a breed that needs outlets for the drive they were built with.
Follow for more dog training tips.
