10 Chihuahua Facts That Go Beyond Their Tiny Size

Chihuahuas may be small, but they’re full of surprises. Their history is richer than most people realize, and their quirks go beyond their tiny size and big attitude. Some have ancient origins, others defy expectations, and a few are just downright bizarre. Here are some of the most unexpected Chihuahua facts that might catch you off guard.
Their Origins Are From Mexico

Originating in Mexico, Chihuahuas are descended from the Techichi, a little dog that the Toltecs and Aztecs loved. Originally thought to possess mystical powers, these small dogs have a fascinating history and are named after the Mexican state, where they were first discovered in the 1800s.
Chihuahua Means ‘Between Two Waters’

Their name comes from the Nahuatl word Xicuahua, which translates to “between two waters.” This refers to the region’s geography, as the state of Chihuahua in Mexico is dotted with rivers and valleys. The name captures the natural beauty that has shaped the breed’s legacy for centuries.
They Have Big Brains

Chihuahuas are at the top of the class when it comes to brain-to-body ratio. Their brains weigh about 55 grams, making up approximately 1.6% of their body weight, while the average dog has a brain-to-body weight ratio of around 1:125. Studies have found that they are among the smartest dogs!
They Can Have Extra Toes

Some breeds, including Chihuahuas, are born with an unusual trait—polydactylism, which means they have extra toes. While it’s rare, it’s not unheard of. These extra digits don’t usually cause any harm, but they can make a pup’s paws look a little different than expected. In some cases, they’re removed for comfort, while in others, they become a quirky feature of the dog’s unique anatomy.
They Were Once Believed To Cure Asthma

In the mid-20th century, a belief emerged that Chihuahuas could cure asthma. The idea was that the dog would “absorb” the child’s asthma, leading to relief for the sufferer. This belief was prevalent enough to be noted in medical discussions as recently as the 1950s.
There Are Only Two Official Breeds

Chihuahuas come in two official coat types: smooth and long. Smooth-coated Chihuahuas have a sleek, glossy look that feels almost polished, while the long-coated variety has soft, feathered fur that can be straight or slightly wavy. The longer fur often gathers around the ears, neck, legs, and tail, giving them a more refined, elegant appearance.
They Come In Two Head Shapes

Chihuahuas are distinguished by their unique head forms, which are divided into two categories: “apple head” and “deer head.” The “apple head” has a rounded, dome-shaped skull, giving it an apple-like look. The “deer head” Chihuahua, on the other hand, has a longer, slimmer head that resembles a young deer.
They Are More Prone To Phobias

Chihuahua’s strong attachment to their owners makes them prone to separation anxiety, leading to behaviors like excessive barking and destructive chewing. Their small stature could also make bustling environments overwhelming. Loud city noises, heavy traffic, and crowded areas may induce fear, causing them to tremble, hide, or refuse to walk.
Japan’s Police Force Has A Search-and-Rescue Chihuahua

In 2010, Japan’s police force welcomed an unexpected recruit: Momo, a long-haired Chihuahua. Despite weighing just 6.6 pounds, Momo passed the search-and-rescue test in Nara Prefecture, distinguishing herself among 70 canine candidates. Her small stature allows her to maneuver tight spaces during disasters, a task challenging for larger breeds.
The Chihuahua That Took Over Baseball

When El Paso’s Minor League Baseball team needed a name in 2014, fans picked one that stood out—the Chihuahuas. It’s a nod to the nearby Chihuahuan Desert, but also a perfect fit for a scrappy, energetic team. With a fierce-looking Chihuahua as their logo, they’ve become a local favorite, adding personality to the city’s sports scene.