+40 Border Collies are the brainiacs of the dog world—most people consider them to be the smartest dog breed. Besides being highly intelligent, these dogs are also known for their endurance, energy, loyalty, and friendliness. According to Stanley Coren, the Border Collie is the smartest dog breed when it comes to obedience training. The world's most intelligent dog was a Border Collie who knew over 1,000 nouns. The Border Collie's ability to efficiently herd sheep also requires a special type of dog intelligence.
HEIGHT 19-22 inches (male) 18-21 inches (female)
WEIGHT 30-55 pounds
LIFE EXPECTANCY 12-15 years
For more info go to https://www.akc.org/dog-breeds/border-collie/
