Mark Raycroft / Cocker Spaniel (Canis familiaris) puppy playing, North America
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Eric Baccega / Black flat-coated retriever dog splashing in water and retrieving stick (Canis familiaris)
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Mark Raycroft / Border Collie (Canis familiaris) adult with three tennis balls in its mouth, waiting to play fetch
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Mark Raycroft / Weimaraner (Canis familiaris) puppy playing with stick, North America
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Mark Raycroft / Weimaraner (Canis familiaris) puppy playing with stick, North America
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Mark Raycroft / Golden Retriever (Canis familiaris) female puppy playing with stick, North America
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Mark Raycroft / Beagle (Canis familiaris) puppy playing with stick, North America
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Mark Raycroft / Beagle (Canis familiaris) puppies playing with stick, North America
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Mark Raycroft / Beagle (Canis familiaris) puppy playing with stick, North America
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Mark Raycroft / Beagle (Canis familiaris) puppies playing with stick, North America
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Jaymi Heimbuch / Domestic Dog (Canis familiaris) named Scooby, a scent detection dog with Conservation Canines, playing during a break, northeast Washington
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Jaymi Heimbuch / Domestic Dog (Canis familiaris) named Ranger, a scent detection dog with Conservation Canines, playing in water, Adirondack Mountains, New York
