Border Collie

The Border Collie is a medium-sized herding breed originating from the Anglo-Scottish border region. It is known for its intelligence, energy, and intense work focus. The breed typically stands 48–56 cm tall and weighs 14–25 kg, with a lifespan of 12–15 years (all estimates). Coat types include short or long, and smooth or rough. Temperament traits commonly include being intelligent, energetic, alert, work-focused, loyal, and eager to please, though individual dogs vary. The breed is not universally recognized by all registries; recognition status varies by registry.

The Border Collie was developed by shepherds in the Anglo-Scottish border region for herding sheep in hilly terrain. Its development focused on working ability through selective breeding. The breed's lineage can be traced back to a single dog named Old Hemp, born in 1893, according to one source. The breed's history is closely tied to its herding purpose, and it is classified in the Herding group. Recognition status varies by registry, so not all kennel clubs may recognize it uniformly.