American Bobtail

American Bobtail lands at #3 with a dog-friendliness score of 5 and a lifespan of 11 to 15 years, tying the Kurilian in canine compatibility but lagging by 5 years at the upper end. Its calm energy level of 3 and bobbed tail confer a 20% lower stress response in multi-pet homes versus the typical rival. A 2022 study found 85% of American Bobtails integrate seamlessly with dogs.