Many Different Dog Breeds have been known as distinct species and Canis familiaris and scientists have led our society to believe and reclassify dogs as Canis lupus familiaris. Domestic dogs range in different sizes from as small as a Chihuahua to as big as a English Mastiff. Their physical appearance, conformation, temperament and function are extremely different . In the United States domestic animals, including dogs, may be protected under national, state, provincial, and local legislation.

There are 3 ways to find information on this site:

• browse the Information section to learn all about the dog breed's backgrounds
• browse the Photos section to see images of each of the dog breeds
• browse the Sources section to understand where all the information on the dog breeds was found