The Jack Russell terrier is a sturdy little dog with a very consistent appearance. One glance and you'll know immediately that it's a JRT. They have dark brown eyes, ears that fold over in a "V" shape, and a narrow, athletic body. Their coats are smooth but can come in rough or broken varieties as well. Learn everything there is to know, including little known facts and secrets and how to care for every aspect of the Jack Russell Terrier's life.