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Remembering the smartest dog in the world


the smartest dog in the world

Chaser, a remarkable Border Collie, lived a fulfilling 15-year life, but her legacy traces back to Dr. John Pilley's pursuit of understanding canine cognition. After losing his beloved Yasha, Dr. Pilley, Professor Emeritus of Psychology, embraced Border Collie trials.


Intriguingly, Dr. Pilley discovered that traditional language training fell short in capturing a dog's cognitive abilities. A pivotal moment came during a conversation with farmers who defied the scientific notion that dogs couldn't grasp proper nouns. This realization prompted Dr. Pilley to recalibrate his approach, leading to groundbreaking research with Chaser.

On the eve of Dr. Pilley's 76th birthday, his wife Sally gifted him a Border Collie, marking the beginning of a groundbreaking journey into canine language acquisition.


the smartest dog in the world

(Identifying 1,000 toys based on noun recognition)


Chaser, the dynamic canine, entered their lives on April 28, 2004, earning her moniker due to an insatiable desire to chase everything in sight. Dr. Pilley, the visionary behind this extraordinary journey, aimed to unlock the secrets of human language within the canine mind.


Initiating groundbreaking work, Dr. Pilley recognized the unique inter-species bond with dogs and believed tapping into their social relationship was pivotal for cognitive exploration. Unlike previous studies with groups of animals, Dr. Pilley focused on one-on-one interaction, fostering a rapid and profound connection.


At just two months old, Chaser embarked on her linguistic adventure with "errorless learning." Dr. Pilley introduced proper nouns, starting with a blue ball. This method ensured a fail-proof environment, with Chaser quickly grasping commands like "catch blue" and "find blue." By the end of the fifth month, Chaser had mastered an impressive repertoire of 40 words, firmly embedded in her long-term memory.


the smartest dog in the world

Witness the brilliance of Chaser, hailed as the world's smartest dog, who astounded the world by mastering over 1,000 proper nouns in her lifetime. Yet, her true genius emerged in her innate understanding of language concepts. Chaser's "a-ha moment" came when she grasped that "this is" signaled a naming event, allowing her to learn names in just one trial.

Delving into more profound cognitive feats, Chaser extended her knowledge to groups and categories. With 30 balls individually identified by proper nouns and categories, she showcased an unprecedented ability to comprehend adjectives like bigger, smaller, faster, and slower.


Dr. Pilley and Chaser revolutionized dog intelligence research, relying on the power of play and positive reinforcement. Unlike traditional obedience-focused approaches, Dr. Pilley prioritized Chaser's joy and self-expression, creating a bond that transcended mere commands.


Chaser's remarkable journey reached iconic heights, captivating astrophysicist Neil deGrasse Tyson, winning over Anderson Cooper on "60 Minutes," and even gracing the screen in the TV show "Scorpion." Heralded as the most scientifically important dog in over a century by Brian Hare, co-author of "The Genius of Dogs," Chaser's story unveils the extraordinary sophistication within a dog's mind.

the smartest dog in the world

Language is Communication

Bianchi said the family gets hundreds of letters from people that are having success in teaching their dog language, while “some people ask, ‘what’s the point of teaching a dog language?’ Well, language is communication. It’s a gateway to greater understanding and is a way for us to communicate with them and for them to understand us. It greatly enriched Chaser’s life.”


Chaser may be gone, but her legacy will live on. Spartanburg nonprofit Hub City Animal Project is putting up a bronze statue of Chaser in front of The Children’s Museum in spring of 2020. There is already one book out on the famous pair entitled Chaser: Unlocking the Genius of the Dog Who Knows a Thousand Words, and Bianchi is compiling a second book that includes step-by-step directions on teaching your dog language. She hopes it will be released around the same time the statue is complete.




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