Although dogs are most abundant and widely distributed terrestrial carnivores, the potential of feral and free-ranging dogs to compete with other large carnivores is limited by their strong association with humans.[6] For example, a review of the studies in the competitive effects of dogs on sympatric carnivores did not mention any research on competition between dogs and wolves.[103][107] Although wolves are known to kill dogs, they tend to live in pairs or in small packs in areas where they are highly persecuted, giving them a disadvantage facing large dog groups.[103][108]
Some dogs’ house soiling is caused by incontinence, a medical condition in which a dog “leaks” or voids her bladder. Dogs with incontinence problems often seem unaware that they’ve soiled. Sometimes they void urine while asleep. A number of medical issues-including a urinary tract infection (UTI), a weak sphincter, hormone-related problems after spay surgery, bladder stones, diabetes, kidney disease, Cushing’s disease, neurological problems and abnormalities of the genitalia-can cause urinary incontinence. Before attempting to resolve your dog’s house-soiling problems through training, please see your dog’s veterinarian to rule out medical issues.
In the field of comparative psychology, researchers study animals in order to learn about the evolution of various traits and what this can tell us about ourselves. At the DogStudies lab at the Max Planck Institute for the Science of Human History, project leader Juliane Bräuer studies dogs to make these comparisons. In a recent study published in the journal Learning & Behavior, Bräuer and colleague Julia Belger, now of the Max Planck Institute for Human Cognitive and Brain Sciences, explore whether dogs have metacognitive abilities -- sometimes described as the ability to "know what one knows" -- and in particular whether they are aware of what information they have learned and whether they need more information.

Even if you catch your pup in the act of relieving himself indoors, make sure you don't respond with anger or force. What can happen in that case is your pup will connect you seeing him eliminate with your anger, and he may get sneaky about it. It's important that every situation pertaining to housetraining is very positive. In short, you can't punish or frighten a dog into appropriate behavior.
So I decided to make like a Westminster Kennel Club judge and rank the show’s top 18 dogs. This is, obviously, a subjective process. The following bundles of slobbering joy are the ones I deemed the best boys and girls, in order, as of this writing. Tomorrow, I could conceivably change my mind about who belongs in first place because, aww, all these pups are the best.
In 1999, a study of mitochondrial DNA indicated that the domestic dog may have originated from multiple grey wolf populations, with the dingo and New Guinea singing dog "breeds" having developed at a time when human populations were more isolated from each other.[20] In the third edition of Mammal Species of the World published in 2005, the mammalogist W. Christopher Wozencraft listed under the wolf Canis lupus its wild subspecies, and proposed two additional subspecies: "familiaris Linneaus, 1758 [domestic dog]" and "dingo Meyer, 1793 [domestic dog]". Wozencraft included hallstromi - the New Guinea singing dog - as a taxonomic synonym for the dingo. Wozencraft referred to the mDNA study as one of the guides in forming his decision.[1] The inclusion of familiaris and dingo under a "domestic dog" clade has been noted by other mammalogists.[21] This classification by Wozencraft is debated among zoologists.[22]