These dogs are extremely intelligent and learn commands and tricks with ease. They have a zest for life and love to be involved in everything going on around them. They maintain a puppyish demeanor well into adulthood, and that vitality makes them a joy to live with. Once you have met and gotten to know this breed you will wonder how you ever lived without one.

In a 2000 review by the Centers for Disease Control and Prevention, which examines data from both media reports and from the Humane Society of the United States, pit bull-type dogs were identified in approximately one-third of dog bite-related fatalities in the United States between 1981 and 1992. However, the review notes that studies on dog bite-related fatalities which collect information by surveying news reports are subject to potential errors, as some fatal attacks may not have been reported, a study might not find all relevant news reports, and the dog breed might be misidentified.[42] The AVMA has also noted fundamental problems with tracking breed in dog bite-related fatalities.[38] In a 2013 study of 256 fatalities in the United States from 2000 to 2009, the AVMA determined that valid breed determination was possible for only 17.6% of cases.[43]


Look for a breeder who is a member in good standing of the Chihuahua Club of America and who has agreed to abide by the club's code of ethics. It specifies that its members should evaluate all breeding stock for hereditary faults, never sell dogs to pet stores, and take back Chihuahuas they have bred in the event that the buyer cannot keep them. The CCA lists member breeders on its website, but it’s still important to interview them before buying.
Two-color varieties always have a white base color with areas of the second color. Tan and white is the most common two-color variety, but there is a wide range of other colors including lemon, a very light tan; red, a reddish, almost orange, brown; and liver, a darker brown, and black. Liver is not common and is not permitted in some standards; it tends to occur with yellow eyes. Ticked or mottled varieties may be either white or black with different colored flecks (ticking), such as the blue-mottled or bluetick beagle, which has spots that appear to be a midnight-blue color, similar to the coloring of the Bluetick Coonhound. Some tricolor beagles also have ticking of various colors in their white areas.[33][34]
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