Answer: He’s the product of a pure blooded Jack Russell Terrier on his father’s side who mated with a Pomeranian/Husky/Beagle mix. He actually reminds me of (and acts like) a Jack Russell, but he’s thicker, more muscular (particularly through the chest), doesn’t have those spindly legs, and he digs down deep and pulls like a sled dog on his leash when he’s dying to get at something.