Puppy Development – Another Fear Imprint Period

  The first researchers to write about puppy development were John Scott and J. L. Fuller in the forties, fifties and sixties.  Clarence Pfaffenberger, with his book New Knowledge of Dog Behaviour, made these stages known to dog fanciers.  He was followed by Jack and Wendy Volhard, who are better known for their temperament tests […]

Puppy Development – Another Fear Imprint Period Read More »