The appearance of dogs varies from breed to breed, but most dogs are mammals that walk on all fours and are covered with hair. They have flexible bodies and developed sense of smell, hearing and vision.
Generally speaking, dogs can be divided into three types: large dogs, medium dogs and small dogs. Large dogs, such as intelligent and studious Labrador and loyal and witty German shepherd, are generally 60-80 cm tall and weigh 30-50 kg. Medium-sized dogs, such as beautiful huskies and friendly and intelligent Teddy dogs, are generally 40-60 cm tall and weigh about 15-30 kg. Small dogs, including cute and lively poodles and smart and flexible chihuahuas, are generally 25-40 cm tall and weigh 1- 10 kg.
2. Characteristics of dogs
Dogs are faithful companions of human beings and have many unique characteristics:
First of all, the dog's sense of smell is very sensitive, and its olfactory memory is excellent, so it can judge its owner's mood and health through its sense of smell.
Secondly, dogs have excellent hearing and can hear high and low frequencies that humans can't hear. Dogs will act according to the password issued by their owners, which are widely used in military police, blind guides, hearing-impaired people, criminal investigation and so on.
In addition, dogs are also very social animals. They like contact with human beings and are good at expressing their feelings. They are the pets that are the easiest to blend in with humans. Moreover, dogs will continue to learn and adapt, which can bring happiness and comfort to human beings.
3. Dog's behavior habits
Dogs are highly socialized animals and like to interact with humans and other dogs. Dogs are very dependent on their owners and will have emotional dependence on their owners. The dog felt uneasy and lonely when his master left.
Dogs are very active animals and need proper exercise to keep healthy. Playing, walking, training and other activities with dogs every day can enhance the dog's muscle condition, improve the dog's endurance, and also benefit the dog's mental health.
Of course, dogs sometimes show some problem behaviors, such as tearing down their homes, biting people, barking and so on. At this point, the owner needs to change the dog's bad behavior habits through appropriate training methods.
4. Life span and health of dogs
According to different breeds, different physical conditions and eating habits, the life span of dogs is also different. The life span of large dogs is generally shorter than that of small and medium-sized dogs, because larger dogs are more likely to get some diseases related to obesity and bone and joint problems. Generally speaking, the life span of dogs is about 10- 15 years.
On the premise of keeping a good figure, the owner also needs to provide the dog with proper food and exercise, receive regular veterinary examination and health care measures to avoid the occurrence and infection of diseases and help the dog maintain a healthy and happy life.