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"She knows 1,022 names, a record that displays unexpected depths of the canine mind and may help explain how children acquire language."
 ~ Sit. Stay. Parse. Good Girl!

Nicholas Wade, The New York Times

"In the age old war between cats and dogs,

canines might have just struck

the killer blow...."

                     ~  Jessica Griggs, New Scientist

"The smartest and most beautiful

dog in the world."

                          ~  Olivier O'Mahony, Paris Match

"Chaser is the most scientifically  important dog in over a century.  

Brian Hare, co-author of THE GENIUS OF DOGS

"The world's smartest dog, Chaser has the largest vocabulary of any nonhuman animal."

 ~  Super Smart animals, BBC Television

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 Click above links to purchase 

This marvelous blend of good science and heartwarming dog story will inspire all of us to reexamine our canine friends. --Nancy Bent, Booklist

"An engrossing and remarkable tale."
—The Bark

"A delightful memoir that offers a challenge to behavioral psychologists and inspiration for pet lovers."
—Kirkus Reviews

"This marvelous blend of good science and heartwarming dog story will inspire all of us to reexamine our canine friends."
—Booklist, *starred* review

"Chaser is the most scientifically important dog in over a century. Her fascinating story reveals just how sophisticated a dog’s mind can be."
—Brian Hare, coauthor of The Genius of Dogs

"After you read Chaser, you will realize that you may have underestimated the intelligence of your dog. Marvelous insights into a dog’s mind."
—Temple Grandin, author of Animals in Translation and Animals Make Us Human

"This is an extraordinary book, full of warmth and wisdom that has the potential to forever change the way we look at dogs. While Chaser herself seems extraordinary, maybe she is also every dog, in showing us what every dog is capable of.
—Jeffrey Moussaieff Masson, author of When Elephants Weep and Dogs Never Lie About Love

"If a truly great book leaves one better for having read it, then Chaser is quite simply a masterpiece. Dogs and those of us who love them owe to debt of gratitude to the brilliant, courageous author and his equally heroic subject."
—Jennifer Arnold, author of Through a Dog’s Eyes

Read about the incredible journey of John Pilley & Chaser.

A blend of "Marley & Me" meets riveting science 

John Pilley is the New York Times
co-author with Hilary Hinzman of 
"Chaser, Unlocking the Genius of the Dog Who Knows a Thousand Words"

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1928 - 2018


We are sad to inform you that John W. Pilley, Jr. Professor Emeritus of Psychology at Wofford College, owner/teacher of Chaser, passed away June 17th, 2018 after a brief arm wrestle with leukemia, 2 weeks shy of his 90th birthday. PBS's, Nova ScienceNOW & producer Julia Cort re-cut and posted a beautiful memorial video below. To learn more about this magical man click here.


Chaser continues to live with the Pilley women; Sally Pilley, Robin Pilley and Deb Pilley Bianchi, all of whom have lived, loved and worked with Chaser for her entire life. They are continuing to carry on the Chaser legacy with a second book, a fascinating, result oriented tutorial of how to teach your dog human language, just like Chaser. We believe there will be  "A World of Chaser's." Please continue to follow Chaser's day to day on FB & Instagram.

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