I agree with lynn. That is probably not a purebred Beagle (even thought he seems like a wonderful adoption candidate). The head (width and nose) isn't really the Beagle shape. I'm not so much thinking that the color is proof of an extra breed: I've seen a lot of Beagles with excess white - In the AKC classification it is called 'open markings'. But, when the head doesn't resemble the typical Beagle AND the head size doesn't seem to fit the body..... It's probably another breed. I also agree with Lynn on her guess of Jack Russel. I've seen several unscrupulous breeders sneak small breeds into their breeding program to downsize their dogs. You know the thing about "A Beagle has to be 15" or less". That makes breeders with larger Beagles do stupid things. The most common interbreeds are Basset, Jack Russel, Dachshund, and (I kid you not) Chihuahua ! Good Luck. ps. I do know that I'm coming into this thread REALLY late... but I think it's important to call a spade a spade ( or in this case: a Jack Russel x Beagle ).