The breed can be any color -- solid, marked, or splashed -- and the coat may be long or short.

These little dogs are well known as "purse dogs" -- like "Bruiser" the sassy pup in the movie "Legally Blonde," starring Reese Witherspoon.

The Chihuahua's history is shrouded in mystery, but some believe the breed originated from the Fennec Fox, a very small animal with big eyes and ears

Chihuahuas are alert dogs with terrierlike qualities. They are good with families if the children are gentle and patient.

Because of their small size, Chihuahuas require little exercise and are good city dogs, but can be sensitive to cold temperatures. Smooth-coated Chihuahuas need very little grooming due to their short hair.

See More Breeds

• Dachshund
• Beagle
• Boxer