Breed. Dogs can certainly tell if other dogs are like themand scientists have proved that breeds naturally gravitate to other dogs of their kind. As far as liking other dogs outside of their breed, scientists have said certain circumstantial evidence may make a dog more or less likely to like certain breeds.
It could be the way the dog walks or how tall the dog is relative to another dogit could be their how vocal they are, their energy level, a particular odor, an arrogant stance, or the dog may be too submissive/aggressive to tolerate. Dogs use their instinctive judgement, make the decision, and move on.
Most dogs hate smoke in their faces (though I have seen rare exceptions), and it can cause them major discomfort. First off, a dog's tolerance and metabolism can't handle THC like a human's, and it only gets worse for smaller breeds.
It all comes down to texture, shape and size. Dogs prefer toys that either taste like food or can be torn apart. And each specific type of toy determines a different reaction from your pup. For example, if your pup is a squeaky toy lover, then he is simply following his natural-born instinct to hunt.
A dog can bark at a person because they want attention, food, to go for a walk or to play. Many dogs will bark because they simply want to play or share a positive experience, not to be aggressive.
Humping activity is also a symbol of the arousal of energy in dogs. They might be playing a game with you and they start to hump your leg or a nearby cushion when you settle down or ignore them. This is a release of energy and, while it does not harm them, but for owners, it can be distracting.
Hunting Instinct – Covering their own natural odors with other potent smells can be part of canines' latent hunting instinct, to conceal themselves from their prey. Wolves, coyotes, foxes, hyenas, and other wild canines exhibit this behavior.
Social stimulation. Some male dogs urine mark when they encounter females. Other dogs urine mark when they come close to homes other dogs visit. Some social situations, such as a rival dog nearby, can cause a dog to become overstimulated, resulting in urine marking.
Many breeds are very protective, and many dogs have “their person” – so they will have a tendency to growl when someone else is approaching as a way to ensure that their special person stays safe. You may also see the behavior if they are friendly with other dogs and a new, unknown pet comes around.
The Dog Smells Fear. It could be that fear causes people to sweat a bit more, and dogs pick up on that scent, but they're probably also reading subtleties in a person's body language. Oritmay be acombination of the two that seems to attract your dog to the people who least want his attention.
10 of the most common smells that dogs hate
It might be because our canine companions have ultra sensitive noses and the smell of alcohol is intense, so much so that many people find it unpleasant as well.
Citronella oil has been long used as an animal repellent and is not harmful to dogs, humans or the environment. Fido dislikes the smell of citronella, and when used correctly, it can help keep your yard intact.