Why Is My Dog Attacking My Other Dog All Of A Sudden? Experts Weigh In
Briefly

Sibling rivalry among dogs can arise unexpectedly, resulting in fighting and aggressive behavior. This behavior change can occur due to various factors, including hormonal changes, shifting dynamics, health issues, and alterations in their environment or routine. Experts emphasize the importance of investigating these underlying causes to restore harmony. Alterations in a dog's confidence, competition for resources, or the impact of external changes like a new home or family member can contribute to this phenomenon. A thorough understanding is crucial for ensuring the well-being of all canine companions involved.
Just because dogs got along once doesn't mean they always will. Dynamics can shift over time - one dog grows more confident, another more fragile, and what used to be tolerated might become intolerable.
Common reasons for fighting between dogs can include developmental changes, shifting dynamics, and competing for resources, making it important for owners to identify the root cause.
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