I just got a Jack Russell recently and have started training him for agility courses.
I love Jack Terrier Russells just dislike that they bark so much.
Yeah, they are so smart.  Some of them do tend to bark too much, but we live in the country on many acres, so he gets to hunt and run free.
They are great dogs because they're always happy and they love to play.
They do love to play.  They can actually jump up to five feet high?!  Ours loves to play soccer.  It's really hard to get the ball away from him.
What is an agility race for a dog by the way?
It's like an obstacle course, kind of.  They jump over things, run up ramps, run through tunnels, weave in and out of poles.  It's very entertaining to watch and they love it!
That sounds like so much fun. I have a Siberian Husky and he is 10. I love dogs so much.
Me, too!  They are the best companions.  Huskies like to "talk" a lot.  JRTs don't make noises like huskies.  Have you ever seen JRTs hunt?
I have not. Do they hunt in a specific way?
They are bred to tunnel.  They "go to ground' which means they will follow a fox right into his den and won't give up until they come out with their prey.