Chihuahua (dog) The affected chihuahua will hold its leg flexed, and foot off the ground until the quadriceps muscle relaxes and lengthens, after which the animal feels no discomfort and continues with activity. Chihuahuas are also prone to some heart-related disorders, such as heart murmurs and pulmonic stenosis, a condition in which the blood outflow from the heart's right ventricle is obstructed at the pulmonic valve. Chihuahua (dog) The Chihuahua () is the smallest breed of dog and is named after the state of Chihuahua in Mexico. Chihuahuas come in a wide variety of colors, and two coat lengths. The Chihuahua's history
Maltese dog Maltese dog The Maltese (), "Canis familiaris Maelitacus", is a small breed of dog in the Toy Group. It descends from dogs originating in the Central Mediterranean Area. The breed name and origins are generally understood to derive from the Mediterranean island nation of Malta. This ancient breed has been known by a variety of names throughout the centuries. It has also been known in English as the "ancient dog of Malta," the "Roman Ladies' Dog," the "Maltese Lion Dog," and "Melita" (the former name of Malta). The origin of the common name "Cokie" is unknown, but is believed to