My buddy and pal is a Jack Russel Terrier, a constant companion......and, is so energetic that she can run all day, or so it seems......always ready to chase a tennis ball when in the yard and can catch it in her mouth if you toss it to her......very smart and polite...when she wants to go out, she always follows behind while walking to the door.
Here's a buncha' photos I have uploaded to Webshots - Photo Sharing, Free Wallpaper and Free Screensavers
as "teaberryeagle". There's a couple videos of her playing, etc. on the first page....enjoy.