If you want to learn more about training and controlling your Jack Russell, my ebook is bound to save you hours of training trial and error and relieve a lot of stress from the process: The Jack Russell Lover's Ultimate Guide to Training comes complete with a full chapter on mix breeds.
Funia is a model ;)
Since we got her, she always gets in front of the camera,
I love that because I got on as a gift last year and whenever I need some pictures taken I grab the lead and go to the 'Dog Park' as we call it. There she always jumps on other, bigger dogs and enjoys herself, while I jump around with my amateur camera.
On this picture she was only a bit over 7 Weeks, now she's my lovely 11/12 week old :)