Bred over centuries on the Anglo-Scottish border to herd sheep with little human direction, the Border Collie is widely accepted as the world's most intelligent dog breed. The famous 'eye' — staring down sheep — comes hardwired, as does an obsessive need to work. With a job (herding, agility, flyball) they are unbeatable; without one they invent chores, including herding children, chasing cars, and rearranging furniture. Not a casual pet — they need 2+ hours of structured exercise and serious mental enrichment daily.
