Dogs' heightened senses detect sounds, smells, and subtle movements imperceptible to humans, causing them to bark.

Dogs bark to seek attention or interaction from owners when feeling ignored, bored, or wanting attention.

Dogs bark when anxious or fearful, perceiving potential threats even if not obvious to humans.

Dogs instinctively protect territory and loved ones, often barking may be alert against intruders or perceived threats.

Past rewards for barking can cause dogs to continue the behavior, associating it with positive outcomes.