Preparation materials: pencil, Gou Xianbi and marker.

The first step is to draw the outline of the puppy with a pencil.

The second step is to draw a puppy with Gou Xianbi.

Step three, draw a lawn under the puppy.

Step four, then draw trees and grass behind the puppy.

Step five, color the puppy.

Step 6: Finally, color the rest with a marker.

Dogs belong to Chordata, Vertebrate, Mammalia, Orthoptera, Carnivora, Schipoda and Canidae. Chinese is also called "dog", and dogs are distributed all over the world. Dogs, horses, cows, sheep, pigs and chickens are also called the traditional "six animals". Known as "the most loyal friend of mankind", it is the pet with the highest reproductive rate, and its life span is about 12~ 18 years.

Domestication process:

The biological origin of dogs can be traced back to tens of millions of years ago, and the domestication history of dogs was about10.5 million years ago in the Middle Stone Age. Some scientists even demonstrated from the perspective of genetics that dogs may have been domesticated by humans as early as 654.38 million years ago. Humans first deciphered the dog's genome in 2005, even before researchers used genetic tools to track the dog's earliest home.

Early studies have found that dogs in East Asia have a high degree of genetic diversity, and other key markers have been found in many rural dogs. Therefore, they pointed out that East Asia was the first place where humans domesticated dogs.