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The World’s Smartest Dog
6m 9s
Remembering John Pilley, the owner and trainer of Chaser the Border Collie.
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Video description: Depression, anxiety, and stress can have an effect on a person's memory that mirrors signs of Alzheimer's.
Remembering John Pilley, the owner and trainer of Chaser the Border Collie.
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Check out the new streaming service from Cascade PBS, which pairs your PBS favorites with an ever-growing selection of TV series and films from around the world. Enjoy dedicated mobile and TV apps.