When is a puppy not a puppy?

Transitional – 12 days to 3 weeks

Puppies start to become more active, their eyes (10-14 days) and ears (14-18 days) open and they can start to walk as early as 12 days old. They start to urinate and defecate independently. This is a critical dog maturity period; what they learn from their mother and siblings will stay with them for life. This is the period to begin exposure to novel objects and other stimuli.

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