My beagle Izzie wants to get acquainted with my parent's Jack Russell Terrier?

I brought Izzie to meet KC (Jack Russell) and at first KC as afr,aid of Izzie and once she went up to him, KC growled and snapped at her- went to bite her. My question: is there anything that would be able to help get KC to accept her? or does he just not like her or want her around in his terratory?My beagle Izzie wants to get acquainted with my parent's Jack Russell Terrier?
It is VERY important to start with a slow and gradual introduction. Most animals, by nature, are very territorial. A good thing to do is keep them in seperate rooms where they're able to smell one another through the door occasionally. Take a towel.blanket that the new dogs scent is on and place it under the food bowl of the dog that lives in the home. Soon the resident dog will associate the smell of the new dog with something positive (they're happy when they eat and the smell will accompany meal times). When they act aggressive toward one another immediately separate them but DO NOT coddle/comfort them, in their minds your just saying ';aw, its ok to act scared and aggressive to the other dog'; don't pet and love on a dog after they show a reaction that you disapprove of, they don't see things the way we do. They may never like one another, take it slow to give them a chance to adjust. Good luck.My beagle Izzie wants to get acquainted with my parent's Jack Russell Terrier?
it definitely can be a territory thing but wait - if you're saying that it's a territory thing then aren't you saying that KC is in charge and runs the house? humans should always run the house and be in charge of the territory - if KC is pampered at home it can be the source of the problem - as a jack russel - he needs A LOT of exercise. Don't pamper him unless he is well behaved. Correct him if he is showing dominance - there is a thing called the dominance roll by laying him on his back - however, this doesn't mean you force him into that position by pushing him down with force - you mimick a bite on the neck and apply pressure like a bite like another dog would do - if done correctly to discipline he should lay on his side. I would say before you even do this - put both dogs on a leash and walk them together, then just walk both of them inside and let go. be alert but not to show that you are scared that they might fight dogs pick up on energy and tends to act on that. Do try to walk them together to have them acquainted first. then introduce your dog into the home
LET THEM MEET AT A NEUTRAL PLACE AND HAVE BOTH ON LEASHES
They should have been introduced on neutral territory. Take them to a park or some place where neither would consider it be his or her own.