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PREPARING YOUR HOME: PUPPY ZONES, SELECTING CRATES, AND ESTABLISHING POTTY AREAS
Jean Donaldson: https://www.academyfordogtrainers.com/
sometimes aggression is genetic: van den Berg L.The Domestic Dog: Its Evolution, Behavior And Interactions With People. 4th ed., Cambridge University Press, 2015.
See also: Zapata I, Serpell JA, Alvarez CE. (2016). Genetic mapping of canine fear and aggression. BMC Genomics. doi: 10.1186/s12864-016-2936-3.
See also: Lambert J. (2019). Dog behaviors like aggression and fearfulness are linked to breed genetics. Science News. https://www.sciencenews.org/article/dog-breed-behavior-geneticsKaren Pryor Academy: https://karenpryoracademy.com/