Throughout history dogs have been known as guardians, protectors and most importantly Man's Best Friend. Dog was the servant/ soldier that guarded the tribe's abodes, protecting them from surprise attacks. His keen sense of smell and acute hearing alerted his master of dangers. He also assisted when hunting and provided warmth in winter. Loyalty is faithfulness or a devotion to a person, country, group, or cause. There are many aspects to loyalty. Animals as pets have a large sense of loyalty to humans which may be more human-to-human loyalty.