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.
Lumps On Edges of Ears
My 4yrs old jack "Bruno" has strange hard lumps on the edges of his ears which can't be removed by washing!! I have removed one of them with skin & hair!! Bruno was recently @ his vet & was treated for all the usual things like worms/ticks/etc.......I am worried as I have only noticed these lumps in the last few days & fear they could be there awhile!!
His ears (inside) are totally clean with no foreign bodies or smells!! & Bruno has no other lumps anywhere else on his body!!