Bone Clones® Applehead Chihuahua Skull

The common chihuahua.

• Explore variety in canine skull structure
• Show changes from directed breeding

A small dog with a long history. One origin theory: the dogs derived from the Techichi, a small companion dog kept by the people of the Toltec civilization as early as the 9th century. DNA tests suggest direct lineage to ancient pre-Columbian Mexican dogs. Chihuahuas exhibit varied morphology in their small size (1 to 12 lbs.), including skull shape, coat length and coloration. In contrast to the Deer Head Chihuahua, this variety exhibits an apple shaped head, prominent forehead, near 90-degree stop (transition from forehead to muzzle), short muzzle, round full eyes, erect ears, compact legs and body. Most Chihuahuas are born with a 'molera', an incompletely fused cranium (called a fontanelle in humans), which presents no health problems.