Have you ever heard of walking a dog?

Dogs are domesticated by wolves. As early as the era of hunting and gathering, people have domesticated dogs as hunting assistants. Dogs are the earliest domesticated domestic animals.

Dogs are carnivores. When feeding, animal protein should be prepared in the feed, supplemented by vegetarian ingredients to ensure the normal growth and health of dogs. Dogs sometimes eat grass, but they eat very little and occasionally spit it out. Dogs eat grass not to satisfy their hunger, but to clear their stomachs, mainly because of their unique gastrointestinal structure. The dog's stomach is very big, accounting for about 2/3 of the abdominal cavity, but its intestines are very short, accounting for about13 of the abdominal cavity. Therefore, dogs basically use their stomachs to digest food and absorb nutrients. It is easy to digest meat food, and it is difficult to digest things with "tendons" such as leaves and grass. Although dogs are carnivores, they can eat vegetables and grains when they are in trouble. Typical wild carnivores' dietary nutrition comes from the stomach contents of herbivores they capture. High-protein food (eating a lot of meat) can help them prevent muscle tissue damage. Dogs like to chew bones. This is also the habit of biting prey in the original ecology. Always give it some bones when feeding. Dogs generally have the habit of feeding on people and their own feces to varying degrees. Studies show that dogs get along with humans in the process of tens of thousands of years of domestication, which is one of the important food sources that dogs have to accept during the early food shortage period of human society. Some people think that this is a pathological manifestation of dogs under the condition of insufficient food, malnutrition, lack of some trace elements or parasitic diseases. Supplementing trace elements can also reduce this behavior.

Puppies and old dogs sleep longer, while puppies and strong dogs sleep shorter. Dogs are generally in a shallow sleep state, and they can wake up with a little movement, but there are also deep sleeps. When sleeping lightly, the dog is prone, with his head resting between his two front paws, often with one ear close to the ground. Dogs are not easy to wake up after a deep sleep, and sometimes they can talk, accompanied by convulsions of limbs, shaking of head and ears. When you sleep, you often lie on your side and spread out all over. It looks cheerful.

Dogs have territorial habits and occupy a certain range to protect themselves from other animals. They use anal gland secretion with special smell, sweat secreted by sweat glands between toes and pictures scratched on the ground with their hind legs as territorial marks. Dogs like to chase creatures, and people use this characteristic of dogs to drive away cattle and sheep and protect themselves.