DEVELOPMENTAL STAGES & SOCIALIZATION - What happens when - how your puppy changes and develops http://www.diamondsintheruff.com/DevelopmentalStages.html
6 to 12 weeks "This period is especially important for the development of a stable emotional temperament and affective tone.* Many social and emotional deficits observed in adult dogs are believed to result from removing puppies too early from the mother and littermates*." - Steven R. Lindsay

