Denver-Aurora-Lakewood, CO: CBSA Type: Metro: CBSA Division: CBSA Division Name: CBSA Population: 2,543,482: CBSA Division Population: 0: MSA: 2082: MSA Name: Denver-Boulder-Greeley, CO CMSA: PMSA: 2080: PMSA Name: Denver, CO PMSA: City State Key: Z11413: Preferred Last Line Key: Z11413
Puppies generally stand by day 15 and take their first wobbly walk by day 21. By age three weeks, puppy development advances from the neonatal period to the transitional period. This is a time of rapid physical and sensory development, during which the puppies go from total dependence on Mom to a bit of independence.
Tips for estimating the age of a puppy or dog. Birth to 2 weeks of age: Newborn puppies are born toothless and with their eyes closed. These features can be used to identify puppies that are less than two weeks of age. Puppies this age spend most of their time rooting, suckling, and sleeping.