Dachshunds are carnivorous mammals in the family Canidae, also known as badger hunting dogs. It is a hunting dog specifically used to capture wild animals in narrow caves. Due to its short limbs and body resembling a sausage, it is called a sausage dog. The longest lifespan can reach over 15 years, making it very suitable as a companion dog. Dachshunds were born in Germany in the mid-19th century and were sent to England. At the beginning of the 20th century, the British developed a miniature dachshund, which is about 5 kilograms smaller than the ordinary dachshund. At the 1972 Munich Olympics in Germany, it was used as the official mascot, symbolizing the athletes' resilience, agility, and the harmonious and diverse Olympic spirit.

The Bloodhound appeared in Europe long before the Holy War, and the first dog came from Constantinople. There are two varieties: black and white. The black breed was a famous St. Hubert hound in the 8th century, while the white breed later became a famous Southern hound. Black blood was imported into the UK. Both breeds play an important role in the development of other hunting dogs and dog breeds. In the 12th century, bishops at that time happened to use dogs as a means of transportation, and church dignitaries were one of the first to develop blood hunting dogs. A large number of senior pastors provide for a group of hunting dogs, and dog farms are an important part of every monastery.

The Labrador Retriever is a breed of hunting dog that originated in Newfoundland, Canada, and was first trained to retrieve fishing nets and carry them on cold seas. Labrador Retrievers have a very high IQ, they are intelligent, obedient, easy to train, obedient to commands, and very gentle towards both the elderly and children. After training, it can serve as an important helper for humans, such as a guide dog for the blind, an assistance dog for the disabled, or a guard dog to assist in detecting drugs, explosives, and so on.