The origin of the word dog is as follows:

1. Dog is one of the earliest domesticated domestic animals. As early as four or five thousand years ago, painted pottery in Machang period was painted with dog-shaped patterns. Later, the dog characters in Oracle Bone Inscriptions glyph are similar to tapirs, with simple lines, but they highlight the dog's long tail and are hieroglyphics. ?

2. The dog characters in the inscriptions inherited the Oracle Bone Inscriptions glyph, and some inscriptions were painted as the silhouette of the dog. The seal script was deformed greatly, and the image of the dog disappeared. At the same time, the pictophonetic characters of dogs, the pictophonetic symbols of dogs and the phonetic symbols of sentences are made. After the official transformation, regular script evolved into a dog character.

Dogs belong to Carnivora Canidae. Dogs are distributed all over the world. There is also a "hierarchy" when living in groups, which can maintain the stability of the whole group and reduce the struggles and wars caused by competition for food, living space and the opposite sex. Dogs have territorial habits and occupy a certain range to protect themselves from other animals.

The lens of a dog's eyeball is relatively large and deformed like a horse's eyeball. The canine teeth are all short crowns, and the crowns of the first and second maxillary incisors are three peaks, with a canine tooth peak in the middle and small peaks on both sides. In China culture, dogs belong to one of the 12 Zodiacs, ranking 1 1 among the 12 Zodiacs. Dogs, horses, cows, sheep, pigs and chickens are also called "six animals".

Botanical history:

Dogs are domesticated by wolves. As early as the era of hunting and gathering, people have domesticated dogs as hunting assistants. So dogs are the earliest domesticated domestic animals. Dog bones have been found in Cishan, Wu 'an, Hebei, Peiligang, Xinzheng, Henan, Hemudu, Yuyao, Zhejiang, which proves that it has a long history of domestication.

The dog-shaped scorpion unearthed from Sanlihe River in Jiaoxian County, Shandong Province is vivid and lifelike, which makes us see the morphological characteristics of domestic dogs in Neolithic Age. The dog bones unearthed from Anbanpo site in Xi 'an, Shaanxi, have smaller skulls, protruding frontal bones, smaller teeth and curved horizontal edge of mandible, which is quite different from that of North China wolves, indicating that the history of human domestication of dogs is indeed very early.