A horse is a slender mammal with four long legs, a long tail and a long neck. Horses have friendly expressions and sometimes appear elegant. Their heads are usually big and tidy, their eyes are bright and they have a certain expression. Horses are usually covered with bristles and their muscles are streamlined. Horses are usually black, white and gray.

The appearance characteristics of horses are different according to their physical health and physical strength, except for their types.

2. Appearance characteristics of dogs

Dogs, as faithful companions of human beings, have a lot of diversity in appearance. Different varieties usually have different characteristics. They are usually small, but there are exceptions. Dogs have different facial features. Some breeds of dogs have flat faces, such as French bulldogs. Other breeds of dogs have long protruding faces, such as greyhounds with long noses. Dog hair is also different, some dogs have soft hair, some dogs have hard hair, and some dogs have hairless characteristics.

3. The inherent characteristics of dogs

In addition to appearance, dogs are also rich in internal characteristics. Most dogs have a keen sense of smell, which is why some dogs' sons can be trained as sniffer dogs. Dogs usually have good hearing and strong auditory memory, and can easily distinguish the sources of different sounds. Among mammals, dogs are usually of higher rank. They are good at learning and adapting, and they can obey orders.

4. Behavior characteristics of dogs

The behavioral characteristics of dogs are also an important part of it. They are social animals and usually need to interact with humans or other animals to meet their needs. Training and caring for dogs can help them better interact with humans and reduce unnecessary stress and bad behavior. Dogs have many different personalities, often depending on the breed or the life events and experiences they have experienced. For example, some dogs are more lively, while others are more docile. Their behavior characteristics will be influenced by their environment and training to some extent.