Border Collie
Canis lupus familiaris
🌍 Overview
The border collie is widely considered the most intelligent dog breed in the world, developed on the Anglo-Scottish border specifically for herding sheep using an intense "eye" (predatory stare) and crouching movement. A border collie named Chaser holds the record for the largest tested canine vocabulary — over 1,000 objects by name. Their extraordinary intelligence comes with a significant caveat: without adequate mental and physical stimulation, they become destructive and anxious.
📋 Quick Facts
Native Range
Breed origin: Anglo-Scottish border region, United Kingdom
Natural Habitat
Fully domesticated
Adult Size
18–22 inches at shoulder; 30–55 lbs
Wild Diet
Fully domesticated
Wild Lifespan
12–15 years
Conservation Status
Not applicable (domesticated breed)
🤓 Did You Know?
A Border Collie named Chaser learned the names of 1,022 individual objects, the largest tested vocabulary of any non-human animal. Border Collies can learn a new command in under 5 repetitions and obey it correctly 95% of the time.
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