Is my senior dog too old for a puppy

IS MY SENIOR DOG TOO OLD FOR A PUPPY? TIPS FOR ADDING A PUPPY TO A MULTI-DOG HOUSEHOLD WITH A SENIOR (Early access for our Patreon community)

Puppy Training 101 | The Importance of Puppy Socialization. Lack of good puppy socialization during a puppy’s first 2-6 months of life can seriously increase the possibility of behavioral problems later in life. These behavioral problems can include extreme fear and aggression.

Puppy Training 101 | The Importance of Puppy Socialization