[http://www.youtube.com/watch?v=jaLor7d7NEs](Video Link)Or they're just having fun. Watch as one collie comes up behind another, slowly approaching, step by step. Then his prey stands and seeks out his own victim, not kn...

John Pilley and Alliston Reid, researchers at Woff...  ...er three years of work, they stopped teaching one border collie who developed a thousand-word vocabulary:...

Border collies are compulsive herders and have an intense instin...  ...p appear on screen, says Geri Byrne, owner of the Border Collie Training Center, in Tulelake, Calif. Left...