American Kennel Club - A remarkably bright workaholic, the Border Collie is an amazing dog — possibly a bit too amazing for owners without the time, energy, or means to keep them
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Colby Pitbull: The Famous Black-Nosed Pitbull Bloodline | Colby pitbull, Pitbulls, Pitbull bloodlines
Bulloved - #Foundation #Friday (John P. Colby) Prior to the era of John P. Colby's breeding program (1889 to 1941) breeders and fanciers of the "pit dog" (pit bulls bred for fighting)
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American Staffordshire Terrier History: How the AmStaff Separated From the "Pit Bull" – American Kennel Club
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The legendary Colby's Dime - a Legend in the History of Amazing Pitbulls #apbt #dogfighting #bull - YouTube
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