Transitional Period: 14-28 Days
Puppies' eyes and ears open, they can crawl backward, and they start wagging their tails during the transitional period. In this period of rapid development of motor skills, a complex enviornment is important for optimal development of the nervous system.
"Placing novel toys or objects in the whelping box--a piece of 6-inch PVC pipe, a small squeaker or squeaky toy, a low step or platform for crawling, a ball or small nylon bone--along with providing a variety of noises and sights are important."
Imprinting also occurs; puppies learn they are dogs. "They recognize their mother, other species, specifically humans that are part of their social relations. "A poorly imprinted puppy will have problems being a good dog in the future."
