black & white med size dog - mix terrier? Aug 18, 2010 11:07:17 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by akmont on Aug 18, 2010 11:07:17 GMT -5 Friends found a black & white dog - maybe a jack russell mix terrier?medium size and very friendly. They are trying to find the owners and he did not have a collar on.