Birth to 2 weeks:
Puppy is most influenced by his/her mother.
Senses of touch and taste are present at birth.
2 to 4 weeks:
Puppy is most influenced by his/her mother and littermates.
Eyes open, teeth begin to come in and senses of hearing and smell develop.
Puppy begins to stand, walk a little, wag tail and bark.
By the fourth or fifth week, eyesight is well-developed.
3 to 12 weeks:
During this period, puppy needs opportunities to meet other dogs and people.
3 to 5 weeks:
Puppy becomes aware of his surroundings, companions (both canine and human) and relationships, including play.
4 to 6 weeks:
Puppy is most influenced by littermates and is learning about being a dog.
4 to 12 weeks:
Puppy reamains influenced by littermates and is also influenced by people.
Puppy learns to play, develops social skills, learns the inhibited bite, explores social structure/ranking and improves physical coordination.
5 to 7 weeks:
Puppy develops curiosity and explores new experiences.
Puppy needs positive “people” experiences during this time.
7 to 9 weeks:
Puppy is refining his/her physical skills and coordination and can begin to be house-trained.
Puppy has full use of senses.
8 to 10 weeks:
Puppy experiences real fear involving normal objects and experiences; puppy needs positive training during this time.
9 to 12 weeks:
Puppy is refining reactions, developing social skills with littermates (appropriate interactions) and exploring the environment and objects.
Puppy begins to focus on people; this is a good time to begin training.
3 to 6 months:
Puppy is most influenced by “playmates”, which may now include those of other species.
Puppy begins to see and use ranking (dominance and submission) within the household (the puppy’s “pack”) including humans.
Puppy begins teething (and associated chewing).
Puppy experiences another fear stage.
Puppy may be reaching adult weight and height.
6 to 18 months:
Puppy is most influenced by human and dog “pack” members.
7 to 10 months:
Puppy goes through a second chewing phase, part of exploring territory.
Puppy increases exploration of dominance, including challenging humans.
If not spayed or neutered, puppy experiences beginnings of sexual behavior.
It is highly recommend to have your puppy spayed or neutered. It highly reduces potential health risks.
If you neuter your male puppy at 5 to 6 months, he will probably never learn to hike his leg or mark territory.