Puppies usually stand up when they are around 15 days old and take their first steps by the age of 3 weeks. The first two weeks of a puppy's life are mostly spent sleeping, with puppies sleeping 90 percent of the day. More »

The average baby begins walking between the ages of 9 and 12 months and is walking consistently well by 14 or 15 months. However, some children don't begin walking until they are as old as 17 months. More »

www.reference.com Family Parenting Babies & Toddlers

In general, babies take their first steps when they are between the ages of nine and 15 months. As with other areas of child development, some babies start walking sooner while it takes others a little bit longer. Regard... More »

Puppies can begin to be weaned off nursing and onto solid food by around three to four weeks of age. Weaning should be complete by seven to eight weeks of age. Weaning should be a slow and gradual process of reducing a p... More »

Puppies start losing baby teeth from the age of 12 to 16 weeks. At about four months, all baby teeth are gone, and permanent teeth have surfaced. More »

Puppies should remain with the mother and the rest of litter until at least 8 weeks of age. Once a puppy reaches the 2-month mark, it can completely wean from the mother's milk and begin eating solid food. More »

According to Medic Animal, it is important to begin worming puppies as soon as they reach 2 weeks of age. Puppies need to be wormed every couple of weeks until they are 12 weeks old. More »