The 5,000-year-old Xoloitzcuintli (pronounced "show-low-eats-QUEENT-lee"), the ancient Aztec dog of the gods, is today a loving companion and vigilant watchdog.

The Xoloitzcuintli comes in three sizes (toy, miniature, and standard), and two varieties (hairless and coated). The hairless has tough, smooth, close-fitting skin. The coated variety is covered by a short, flat coat. Both varieties come in dark colors ranging from black, gray-black, and slate to red, liver, or bronze. Its face is thoughtful and intelligent, and a Xolo's forehead will wrinkle when he's deep in thought. The Xolo's graceful, elegant body is surprisingly strong and rugged.