So cute (3/14) by Grace Clark September 4, 2020, 8:43 am Credit Grace Clark 0 Previous 3/14 Next View full list See more Previous article They tend to display what is commonly known as ‘small dog syndrome,’ a behavioral problem where the Jack thinks he is at the top of the pecking order. Next article Jack Russell terriers are tough, tenacious, athletic, and super friendly. This energetic dog was bred to be a working dog and still displays the cleverness that made it a highly-sought after hunting dog back in the early 19th century. Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.