Are Jack Russell Terriers aggressive?

No, Jack Russell Terriers aren’t naturally aggressive; however, their assertive and energetic nature may sometimes be misunderstood as aggression. Proper socialization, early training, and positive reinforcement can help channel their spirited energy in a positive direction. It’s important for pet parents to establish clear boundaries, provide consistent guidance, and meet their exercise needs to prevent any behavioral issues. Pain, discomfort, or underlying medical conditions can sometimes contribute to changes in a dog’s behavior, so it may also be worth visiting a vet to rule out their health as a cause for their behavior.