1. Stubborn Bull Mastiff Puppy Refuses To Go To Bed

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  2. Thief Stealing From Yard Greeted By Bull Mastiff And German Sheppard

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  3. Huge English Mastiff playing with puppy Mastiff

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  4. Spanish Mastiff Watches 'Puppy Bowl' With Extreme Enthusiasm

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  5. French Mastiff Puppy Has Quite The Fun Playing In The Mud

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  6. Mastiff Saves A 'Turtle' From Drowning In A Pool

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  7. Mastiff watches lions on TV, attempts to make contact

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  8. Fearless puppy plays with giant English Mastiff

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  9. Mastiffs play with their piggy best friend

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  10. Pooch Gets Overly Excited While Watching His Favorite Movie

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  11. New puppy thinks English Mastiff is his mother!

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  12. Nimble Ferret Shares Precious Relationship With Gentle Mastiff

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  13. Great Dane and 200lb Mastiff play with baby ducks

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  14. 200-pound English Mastiff is adorably patient with 2-pound kitten

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  15. Westie puppies love to play with gentle Bull Mastiff

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  16. Bull Mastiff enjoys car ride in hilarious fashion

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  17. French Bulldog plays on back of huge French Mastiff

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  18. English Mastiff "allows" puppy to walk him on leash

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  19. Overly-attached Corgi Obsessed With Tibetan Mastiff Best Friend

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  20. Baby Shares Meal With English Mastiff

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  21. Tibetan Mastiff knocks over owner while performing trick

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  22. Huge Mastiff's Sleeping Antics Will Crack You Up

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  23. Giant English Mastiff snuggles with cat friend

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  24. Patient Mastiff Lets Foster Kitten Chew On Its Tail

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  25. Cutest English Mastiff puppy in slow motion

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