Do the kids know? When you call your dog's name, how exactly does the dog know its name? Today, let's solve this puzzle together.

Dogs within the first 3 months of age respond more to their names by reflex, just as babies turn their heads when they hear a rattle. But adult dogs can not only distinguish the emotional ups and downs in their owners' voices, but can even accurately capture their own names in thousands of human words.

It turns out that the evolutionary code of this ability is hidden in the unique auditory system of canines. The frequency range of sound waves that dogs' ears can receive (20000~0 Hz) far exceeds that of humans (0~0 Hz), which allows it to capture subtle differences in the pronunciation of names.

Scientists have found that when the owner calls the dog's name in a gentle tone, the sound wave map presents a unique "smile curve". This specific combination of frequencies is like putting a unique barcode on the sound.

When a dog hears its name, the amygdala, which is responsible for emotional processing in the cerebral cortex, and the hippocampus, which is responsible for memory storage, activate in sync. This means that they do not simply memorize a certain syllable combination, but weave a memory network with names and specific life scenes and emotional experiences. When the dog hears the name, it wakes up a warm picture of being petted, fed, and played in the past.

When the owner repeatedly calls out by name, accompanied by positive feedback, the dopamine secretion system in the dog's brain establishes strong neural circuits, allowing the name to be the key to the pleasant experience.

However, there are significant differences in name recognition between dogs. The average response accuracy of dog breeds such as border herding and pood can reach 68%. And dog breeds such as huskies are only about 0%.