Dogs, scientifically known as Canis lupus familiaris, are classified within the biological taxonomy as follows:

• Domain: Eukarya (organisms with complex cells)
• Kingdom: Animalia (animals)
• Phylum: Chordata (animals with a notochord)
• Class: Mammalia (mammals)
• Order: Carnivora (carnivores)
• Family: Canidae (dog-like carnivores)
• Genus: Canis (includes dogs, wolves, coyotes, and jackals)
• Species: Canis lupus (gray wolf)
• Subspecies: Canis lupus familiaris (domestic dog)

Dogs are a subspecies of the gray wolf (Canis lupus) and have been domesticated for thousands of years. They are highly social animals and have been bred for various purposes, including companionship, herding, hunting, and guarding. Their classification reflects their evolutionary relationship to other canids and their unique adaptations as domesticated animals.