The sideburns (also known as African wild dogs, African jackals) are small and medium-sized canids, belonging to the animal kingdom - Vertebrates. They have unique black, white and yellow markings and are about the size of a dog, but uglier. The canine teeth and cleft teeth of the sideburns are well developed and the bite force is strong, allowing them to chew mammals with bones. Their sense organs are very keen, especially their sense of smell and hearing. Their large ears can receive many high-frequency sounds and are very sensitive to many ultrasonic waves. Sideburns usually live in groups of up to a dozen in the African grasslands. They are one of the most social carnivores.

The term "stupid dog" is usually used for dogs with low IQ or not smart enough behavior. Jokingly speaking, there is no specific biological classification. In terms of behavioral performance, stupid dogs may show characteristics such as being unguarded against strangers, being difficult to train, refusing to change despite repeated admonitions, not coming home when going out to play, and urinating and defecating in the place where they sleep. These behaviors may stem from their lower intelligence or lack of proper training.