We have an adult long-haired-Jack Russell Terrier (taller so he is mixed with some parson terrier) available! We breed some jack russells on our farm so this has been one of our males we used forever. He is 6 years old so plenty of life left in him! He is very sweet and gentle, has been around children and other dogs! We named him Linus! Nothing wrong with him and re-homing at no fault of his own, we are just wanting to keep some females in his bloodline. He is a great dog!!!