Then offer a substitute chew toy. Aggressive behavior toward other animals. It is natural for a dog to try to dominate other dogs. All that running up to, sniffing and one dog laying down and offering their throat is about dominance and submission. But no dog should be allowed to think about really hurting another animal unless they are protecting you.
Some dogs think they are going to be aggressive with cats.
Others bark hysterically in the car when they see a dog. You will hate this over the years, stop them when they are puppies. This is more than puppy rudeness, this is control. You are the leader of the pack. All family members are to be respected.