^ Fan, Zhenxin; Silva, Pedro; Gronau, Ilan; Wang, Shuoguo; Armero, Aitor Serres; Schweizer, Rena M.; Ramirez, Oscar; Pollinger, John; Galaverni, Marco; Ortega Del-Vecchyo, Diego; Du, Lianming; Zhang, Wenping; Zhang, Zhihe; Xing, Jinchuan; Vilà, Carles; Marques-Bonet, Tomas; Godinho, Raquel; Yue, Bisong; Wayne, Robert K. (2016). "Worldwide patterns of genomic variation and admixture in gray wolves". Genome Research. 26 (2): 163–173. doi:10.1101/gr.197517.115. PMC 4728369. PMID 26680994.

Neutering reduces problems caused by hypersexuality, especially in male dogs.[76] Spayed female dogs are less likely to develop some forms of cancer, affecting mammary glands, ovaries, and other reproductive organs.[77] However, neutering increases the risk of urinary incontinence in female dogs,[78] and prostate cancer in males,[79] as well as osteosarcoma, hemangiosarcoma, cruciate ligament rupture, obesity, and diabetes mellitus in either sex.[80]
Citing a 2008 study, the U.S. Center for Disease Control estimated in 2015 that 4.5 million people in the USA are bitten by dogs each year.[176] A 2015 study estimated that 1.8% of the U.S. population is bitten each year.[177] In the 1980s and 1990s the US averaged 17 fatalities per year, while since 2007 this has increased to an average of 31.[178] 77% of dog bites are from the pet of family or friends, and 50% of attacks occur on the property of the dog's legal owner.[178]
Every serious dog owner will tell you that caring for your pet today is made easier, more convenient, and a lot safer if you equip yourself with only well-thought-out, independently-tested, and customer-approved gadgets. These items are not intended to replace the tender loving care and affection that dog owners can provide, these can nevertheless enhance the way we care for our pets. As such, we have scoured the market for the best gadgets every dog owner needs to help make being a pet parent a lot more meaningful for you.

The dogs' value to early human hunter-gatherers led to them quickly becoming ubiquitous across world cultures. Dogs perform many roles for people, such as hunting, herding, pulling loads, protection, assisting police and military, companionship, and, more recently, aiding handicapped individuals. This influence on human society has given them the nickname "man's best friend" in the Western world. In some cultures, however, dogs are also a source of meat.[133][134]
If you are shy about touching certain parts of your dog, get over it. If you are going to clean your dog, you must clean your dog's whole body. If there are any fleas or ticks on your dog, let them sit for ten minutes after working in the flea and tick treatment shampoo. When the bugs are dead, make sure to fully wash all of them off. If they are left on, these could give your dog a disease. To get the ticks off, get your hemostats latched on the ticks head and pull outward so the head doesn't break off and stay in the body. This would include scrubbing all over your dog's body, even areas you are not comfortable with. Never use hot water, and be especially careful to avoid warm water or medicated shampoos on the genital area. This area is sensitive.
There are many different shapes for dog tails: straight, straight up, sickle, curled, or cork-screw. As with many canids, one of the primary functions of a dog's tail is to communicate their emotional state, which can be important in getting along with others. In some hunting dogs, however, the tail is traditionally docked to avoid injuries.[38] In some breeds, such as the Braque du Bourbonnais, puppies can be born with a short tail or no tail at all.[39]
Neutering refers to the sterilization of animals, usually by removal of the male's testicles or the female's ovaries and uterus, in order to eliminate the ability to procreate and reduce sex drive. Because of the overpopulation of dogs in some countries, many animal control agencies, such as the American Society for the Prevention of Cruelty to Animals (ASPCA), advise that dogs not intended for further breeding should be neutered, so that they do not have undesired puppies that may later be euthanized.[74]
Clean your dog's ears. It's normal for a clean ear to have some wax in it, but there shouldn't be any particular smell to it. To clean your dog's ears, apply some ear cleaning solution (bought at a pet supply store) to a cotton round. Not too much or it will drip into the ear while wiping. Wipe dirt and wax away from the inner ear, but don't rub vigorously, as this might cause sores. Don't push too far into the ear, either. If your dog has drop ears like a bassett hound, wipe the inside of the ear flag as dirt collects there as well. The groomers rule of thumb is to clean only what you can see.
It is a reflexive action for many dogs to try to pull away their back leg if it is lifted. Avoid lifting the leg to the side because this is uncomfortable for most dogs. Instead, pick up the foot and gently pull forward or backward. Don't be upset or punish the dog, just struggle through it and praise your dog when he or she is still. If you have a medium or large dog, you may be able to get away with clipping the nails on the hind feet without having to lift the foot.

The domestic dog is the first species, and the only large carnivore, known to have been domesticated. Especially over the past 200 years, dogs have undergone rapid phenotypic change and were formed into today's modern dog breeds due to artificial selection by humans. These breeds can vary in size and weight from a 0.46 kg (1.0 lb) teacup poodle to a 90 kg (200 lb) giant mastiff. Phenotypic variation can include height measured to the withers ranging from 15.2 centimetres (6.0 in) in the Chihuahua to 76 cm (30 in) in the Irish Wolfhound; color varies from white through grays (usually called "blue") to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; coats can be short or long, coarse-haired to wool-like, straight, curly, or smooth.[131] The skull, body, and limb proportions vary significantly between breeds, with dogs displaying more phenotypic diversity than can be found within the entire order of carnivores. Some breeds demonstrate outstanding skills in herding, retrieving, scent detection, and guarding, which demonstrates the functional and behavioral diversity of dogs. The first dogs were domesticated from shared ancestors of modern wolves, however the phenotypic changes that coincided with the dog–wolf genetic divergence are not known.[26]

Certain Pacific islands whose maritime settlers did not bring dogs, or where dogs died out after original settlement, notably: the Mariana Islands,[123] Palau,[124] Marshall Islands,[125] Gilbert Islands,[125] New Caledonia,[126] Vanuatu,[126][127] Tonga,[127] Marquesas,[127] Mangaia in the Cook Islands, Rapa Iti in French Polynesia, Easter Island,[127] Chatham Islands,[128] and Pitcairn Island (settled by the Bounty mutineers, who killed off their dogs in order to escape discovery by passing ships[129]).
Trimming your dog’s nails is an important part of keeping your dog healthy and well-groomed. Well-clipped nails are also a factor in your dog grooming costs. When a dog’s nails get too long, they have the potential to break or split, which can cause them pain and mean a costly visit to your local veterinarian. Overly long dog nails can also cause discomfort for your pup, especially if you have hardwood or tile floors. Be sure to calculate regular nail trimming into your budget for dog grooming. The dog groomer may use trimmers to clip the nails, or they may use a small drill (like a Dremel) to grind down the nails. A good professional groomer will know not to clip too close to the base of the nail, where nicking a nerve or a blood vessel could injure your dog. Nail trimming costs can vary based on geographic location and whether you bring the dog to the groomer or if the groomer picks up and drops off your dog. Transportation fees for pickup and drop-off service can add a lot to the cost. A simple dog nail trim may cost between $10 and $30, depending on location. Nail grinding may cost $2-$8 more than standard clipping. Many dog groomers offer discounts for bundled services, so you could get a nail trim at a reduced rate when you purchase it with a bath.

Dogs bear their litters roughly 58 to 68 days after fertilization,[17][71] with an average of 63 days, although the length of gestation can vary. An average litter consists of about six puppies,[72] though this number may vary widely based on the breed of dog. In general, toy dogs produce from one to four puppies in each litter, while much larger breeds may average as many as twelve.
The most popular Korean dog dish is gaejang-guk (also called bosintang), a spicy stew meant to balance the body's heat during the summer months. Followers of the custom claim this is done to ensure good health by balancing one's gi, or vital energy of the body. A 19th century version of gaejang-guk explains that the dish is prepared by boiling dog meat with scallions and chili powder. Variations of the dish contain chicken and bamboo shoots. While the dishes are still popular in Korea with a segment of the population, dog is not as widely consumed as beef, chicken, and pork.[174]

Various kinds of service dogs and assistance dogs, including guide dogs, hearing dogs, mobility assistance dogs, and psychiatric service dogs provide assistance to individuals with disabilities.[160][161] Some dogs owned by epileptics have been shown to alert their handler when the handler shows signs of an impending seizure, sometimes well in advance of onset, allowing the guardian to seek safety, medication, or medical care.[162]
The origin of the domestic dog includes the dog's evolutionary divergence from the wolf, its domestication, and its development into dog types and dog breeds. The dog is a member of the genus Canis, which forms part of the wolf-like canids, and was the first species and the only large carnivore to have been domesticated.[14][26] The dog and the extant gray wolf are sister taxa, as modern wolves are not closely related to the population of wolves that was first domesticated.[14]
The breed with the shortest lifespan (among breeds for which there is a questionnaire survey with a reasonable sample size) is the Dogue de Bordeaux, with a median longevity of about 5.2 years, but several breeds, including miniature bull terriers, bloodhounds, and Irish wolfhounds are nearly as short-lived, with median longevities of 6 to 7 years.[64]
Amongst apprenticeship programs and other hands-on training activities, Petco pet stylists who are trained from within the company are required to attend and pass Petco's comprehensive 12-week Pet Stylist Apprentice & Certification academy program. In addition to hands-on grooming training with a Petco-certified pet stylist mentor or instructor, all participants receive instruction in health, safety protocols and grooming salon operations. At the end of the program, candidates must pass a technical skills assessment in order to become a Petco Certified Pet Stylist.
×