For those who in convinced that dogs are a "blank slate" from birth - the studies of mono-zygotic and di-zygotic twins who are raised apart (and therefore have different environmental influences) shows that genetics and environment are both almost equally responsible for both diseases and personality traits. What this means for dogs or any animals is that personality traits, such as docility or aggression, are both innate and influenced by environment. There's no such thing as a "blank slate" in any animal. http://www.upi.com/…/Nature-vs-Nurture-Its-a…/3741432044155/
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