The Chihuahua is a native of Mexico, and his ancestors were surrounded by many myths. They were believed to be spirit guides that protected souls as they traveled through the underworld. While the stories about the dog’s origins are interesting, there’s no real evidence about how long they’ve existed or that they were known to the Aztecs or other peoples who inhabited Mexico before the Spaniards came.
Not every Beagle visit to the vet is for a genetic problem. The Beagle’s long, floppy ears are prone to chronic ear infections. Left untreated, such infections can cause permanent damage to the ear canal and even destroy your dog's hearing. Checking ears often and seeing the veterinarian at the first whiff of a problem combined with good follow-through will keep a Beagle’s ears from being an expensive and painful problem.
Copper Canyon, the network of canyons in southwestern Chihuahua inhabited by Tarahumara Indians, is larger and deeper than the Grand Canyon. Copper Canyon’s main attraction is Candameña Canyon (Canyon of the Cascades), which attracts tourists from all over to view its majestic waterfalls. Piedra Volada (Flying Stone) Falls at 453 meters (1,486 feet) is the highest in Mexico and the 11th highest in the world. Basaseachic Falls is the second-highest waterfall in Mexico and the 28th highest in the world.
Alongside the Bloodhound and Basset Hound, the beagle has one of the best developed senses of smell of any dog.[35] In the 1950s, John Paul Scott and John Fuller began a 13-year study of canine behavior. As part of this research, they tested the scenting abilities of various breeds by putting a mouse in a one-acre field and timing how long it took the dogs to find it. The beagles found it in less than a minute, while Fox Terriers took 15 minutes and Scottish Terriers failed to find it at all. Beagles are better at ground-scenting (following a trail on the ground) than they are at air-scenting, and for this reason they have been excluded from most mountain rescue teams in favor of collies, which use sight in addition to air-scenting and are more biddable.[35] The long ears and large lips of the beagle probably assist in trapping the scents close to the nose.[36]
Not every Beagle visit to the vet is for a genetic problem. The Beagle’s long, floppy ears are prone to chronic ear infections. Left untreated, such infections can cause permanent damage to the ear canal and even destroy your dog's hearing. Checking ears often and seeing the veterinarian at the first whiff of a problem combined with good follow-through will keep a Beagle’s ears from being an expensive and painful problem. 

The largest state in Mexico, Chihuahua is headquarters for the world’s fifth largest oil company, Pertróleos Mexicanos. It is also where one of the smallest canine breeds, the Chihuahua, originated. After railroad travel to the Copper Canyon area was upgraded following privatization of the railroad in 1998, tourism became an important and growing segment of the economy. Attractions include the beautiful Copper Canyon region and Pancho Villa’s mansion.
Apple Head and Deer Head comes from the same breed of Chihuahuas but they are different due to their physical appearance. The Apple Head Chihuahua is known for having a round/ apple shaped head and “buggy eyes” whereas a Deer Head Chihuahua has a flatter head, thinner skull, wider eyes, and longer nose. Their physical body shape is mostly the same, except the Deer Head Chihuahua is known to have longer legs than other Chihuahuas.[29] The Deer Head Chihuahua tends to be larger in weight, where an Apple Head is more likely to keep their weight under ten pounds. Apple Head Chihuahuas are bigger in length than they are tall and have shorter necks.[30] Deer Head Chihuahuas have longer ears than Apple Heads and their head also has a slope like form. Both Apple Head and Deer Head can be a short hair or long hair. They also both come in various different colors such as brown, black, tan, or white. Chihuahuas can show traits from both Apple Head and Deer Head.[31] Deer Head Chihuahuas tend to have better health than Apple Heads, due to their longer noses. Apple Heads have a higher risk of getting respiratory issues, due to having a smaller airway. Deer Headed Chihuahuas are not allowed in The American Kennel Club (a club of purebred dogs registered in the United States) due to not meeting the standards that Apple Heads do. Deer Head Chihuahuas are not allowed because they have a longer jaw line and a slope that connects their muzzle and head, creating a 45 degree angle instead of a 90 degree angle like the Apple Head.[32] Apple Heads are allowed in AKC and meet the requirements due to having a smaller weight, having a rounder head, and also having a 90 degree angle formed by the muzzle to the forehead.[33]
A well rounded “apple dome” skull, with or without molera. Expression – Saucy. Eyes – Full, round, but not protruding, balanced, set well apart-luminous dark or luminous ruby. Light eyes in blond or white-colored dogs permissible. Blue eyes or a difference in the color of the iris in the two eyes, or two different colors within one iris should be considered a serious fault. Ears – Large, erect type ears, held more upright when alert, but flaring to the sides at a 45 degree angle when in repose, giving breadth between the ears. Stop – Well defined. When viewed in profile, it forms a near 90 degree angle where muzzle joins skull.
The longcoated Chihuahua is the product of a recessive gene, meaning a puppy must have the gene from both parents for the long coat to express itself, so he isn’t seen in litters as frequently as the smooth. The long, soft coat is flat or slightly curly, and the dog has a ruff around the neck, fringed ears, feathering on the legs and a plumed tail. The hair on the rest of the body is almost as smooth as that on the smooth Chihuahua. Longcoated Chihuahuas are beautiful, and they’re easy to groom, but they do shed seasonally.

When the Spanish first arrived in Chihuahua, more than 200 indigenous groups, including Native Americans, already inhabited the area. Although little of this period’s history is recorded, archeologists have found evidence of inhabitants dating as far back as 3,000 years. Some of these tribes include the Tarahumara (Raramuri), Apache, Comanche and Guarojío. For several thousand years, indigenous groups living in Chihuahua maintained trading relations with groups in other areas. Perhaps the most notable inhabitants were the Tarahumara (Raramuri), a people whose rich spiritual ideology, passive resistance and strong cultural identity enabled them to persevere despite foreign intrusions. Other tribes, like the warlike Apache, were overwhelmed and eventually assimilated after the arrival of the Spaniards.
I have a 10 year old rat terrier-chihuahua mix who is 17 pounds. He is the sweetest dog I have ever met. He loves people and follows me everywhere around the house. He sleeps most of the day but he needs a daily dose of playtime. The only negative is that he can get aggressive toward other dogs (especially big ones!). But other than that, he is such a sweet and loving companion.
There is no pit bull type or breed. It is that mislabeling that jas caused BSL and the issues in today's society. Pit bull is short for American pit bull terrier. Nothing else is a pit bull. They are other breeds bred for other purposes. Most today are BBM bull breed mixes. APBT are very athletic high energy dogs and are dog aggressive but not human aggressive. Many of these other dogs are the ones who are human aggressive and give pit bulls a bad name because of mislabeling. I have worked with APBT nad other bull breeds around 25 yrs and bred heritage apbt for 20.
Reality: Pit Bulls do not have any special physical mechanism or enzyme that allows them to “lock” their jaws. If you compare a Pit Bull skull to a skull of any other dog breed, you can see with the naked eye that both skulls share the same characteristics and general bone structure. However, one personality trait of the Pit Bull breed is determination. Whatever Pit Bulls do, they do it with a great deal of enthusiasm, and it is this trait that can make it seem like they have a locking jaw when they bite down on something and are determined not to release it.
Currently, there are a number of breeds that are recognized by different associations which fall under the term "pit bull". The Federation Cynologique Internationale currently only recognizes three breeds: the Bull Terrier, the Miniature Bull Terrier, and the Staffordshire Bull Terrier.[21] The Canadian Kennel Club also recognizes these breeds, as well as the American Staffordshire Terrier.[22] The American Kennel Club recognizes the Bull Terrier, the Miniature Bull Terrier, the Staffordshire Bull Terrier and the American Staffordshire Terrier as breeds also.[23]
Air France Safety Category 1 dogs, as defined by the French Ministry of Agriculture, Food and Forestry, are not permitted for transport in the cabin, or as baggage or cargo. These so-called "attack dogs" do not belong to a particular breed, but are similar in morphology to the following: Staffordshire Bull Terriers or American Staffordshire Terriers (pit bulls), Mastiffs and Tosas.[70]
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]
Alaska Airlines Health Dog breeds, including Staffordshire Bull Terriers, American Staffordshire Terriers and American Pit Bull Terriers, fly at their owner's risk, with no additional compensation if the dog suffers injury or dies during transit. The airline may refuse to accept the dog if it feels that outside temperatures are too extreme for the animal's safety.[71]
A well rounded “apple dome” skull, with or without molera. Expression – Saucy. Eyes – Full, round, but not protruding, balanced, set well apart-luminous dark or luminous ruby. Light eyes in blond or white-colored dogs permissible. Blue eyes or a difference in the color of the iris in the two eyes, or two different colors within one iris should be considered a serious fault. Ears – Large, erect type ears, held more upright when alert, but flaring to the sides at a 45 degree angle when in repose, giving breadth between the ears. Stop – Well defined. When viewed in profile, it forms a near 90 degree angle where muzzle joins skull.
Pit bulls also constitute the majority of dogs used for illegal dog fighting in America.[10] In addition, law enforcement organisations report these dogs are used for other nefarious purposes, such as guarding illegal narcotics operations.[11][12] use against police,[13] and as attack dogs.[14] On the other side of the law, pit bulls have been used as police dogs.[15][16]
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