puppy development: 1 1/2 months (6 weeks) old

dog facts: puppy development: 1 1/2 months (6 weeks)


here's what to expect from your puppy at one and a half months / six weeks old:

• start of puppy vaccination
• at one and a half old, about 70 percent of a dog's adult brain mass is already present in your puppy
• puppies are now interested in play fighting

Puppies Play Fighting
Image Credit: Funny Puppy Site

Next: Puppy Development at 2 months (8 weeks) old
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