There is no concrete answer to exactly how long a dog will remember its previous owner for. That means continues making loving memories in the present.
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Intelligence
The people talk about their dog’s intelligence, they don’t mean their poodle helps their teen with his algebra homework. However, just as with people, intelligence tells us how well they learn and not how much they know. This category looks at signs of a dog’s intelligence, tests that can be given and activities and items that can be used to improve your pet’s intelligence. Learning is a wonderful thing.