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  2. Why Has My Dog's Behavior Suddenly Changed? An Expert ... - AOL

    www.aol.com/why-dogs-behavior-suddenly-changed...

    Psychology Today: Neutering Causes Behavior Problems in Male Dogs. Heath, Sarah & Wilson, Clare. (2014). Canine and Feline Enrichment in the Home and Kennel: A Guide for Practitioners. The ...

  3. Dog aggression - Wikipedia

    en.wikipedia.org/wiki/Dog_aggression

    1) Punishing dogs has been associated with a strong likelihood of new or increased aggression and other behavior problems; 2) dominance in pet dogs is not a character trait of a dog but rather a power agreement between dogs regarding who has best access to particular resources; and 3) the behavior of dogs controlling access to resources is fluid, not static, depending on context.

  4. Canine reproduction - Wikipedia

    en.wikipedia.org/wiki/Canine_reproduction

    Most dominantly aggressive dogs are male, which causes many people to neuter their male canine companions. Removing testosterone can decrease the intensity of a canine's reaction to stimulus. Testosterone does not cause a behavior to occur, but its absence may decrease the occurrence of a "bad" behavior. [60]

  5. Tinbergen's four questions - Wikipedia

    en.wikipedia.org/wiki/Tinbergen's_four_questions

    Testosterone, for instance, stimulates aggressive behaviour in a number of species. Pheromones: Chemicals used to communicate among members of the same species. Some species (e.g., dogs and some moths) use pheromones to attract mates.

  6. Genetics of aggression - Wikipedia

    en.wikipedia.org/wiki/Genetics_of_aggression

    Aggression is a multi-dimensional concept, but it can be generally defined as behavior that inflicts pain or harm on another. [ 2 ] The genetic-developmental theory states that individual differences in a continuous phenotype result from the action of a large number of genes , each exerting an effect that works with environmental factors to ...

  7. These Dangerous Dog Breeds Cause the Most Attacks - AOL

    www.aol.com/lifestyle/dangerous-dog-breeds-cause...

    Many dog breeds were developed for aggressive tasks like hunting and guarding property – and they are the dogs most likely to cause harm or death. Learn which breeds are more likely to bite in ...

  8. Challenge hypothesis - Wikipedia

    en.wikipedia.org/wiki/Challenge_hypothesis

    The pattern between testosterone and aggression was first observed in seasonally breeding birds, where testosterone levels rise modestly with the onset of the breeding season to support basic reproductive functions. However, during periods of heightened male aggression, testosterone levels increase further to a maximum physiological level.

  9. Dog behavior - Wikipedia

    en.wikipedia.org/wiki/Dog_behavior

    A drawing by Konrad Lorenz showing facial expressions of a dog - a communication behavior. X-axis is aggression, y-axis is fear. Dog behavior is the internally coordinated responses of individuals or groups of domestic dogs to internal and external stimuli. [1] It has been shaped by millennia of contact with humans and their lifestyles.

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