Chihuahua is the smallest dog in the world. It was named after the Mexican state of Chihuahua. Previously, these dogs lived in the wild, but in the modern world, they are companions.
Dogs are not only our best friends, they are our four-legged antidepressants. Pet owners know the best things to cheer up: a soulful gaze, a wagging tail, and a dog’s warm coat. The results of more than seventy studies confirm this.