Loneliness is a complex problem of epidemic proportions, affecting millions from all walks of life.
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You answered your own question. You can't have a dog that is bored of repeated exercises be given a job where it does the same things every single day. Poodles are smart, but they like entertainment. Labs and retrievers are smart, but a predictable routine keeps them occupied.
Dogs are more aggressive around people with one particular personality trait.
Social interactions with a therapy dog help canines as well as humans
Data shows that dogs who look at you with their head tilted seem "cuter".
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