Chaser joined the family of psychologist John Pilley at just 8 weeks old, embarking on a journey that would change all of their lives. She was known as the smartest dog in the world. Chaser, a playful ...

SPARTANBURG, S.C. - The experiment began with a racquetball thathas now been replacedmany times. "Chaser! This is Blue," said John Pilley, a retired Wofford College psychology professor. "Blue," ...

They say every dog has its day — and Wednesday was that day for Chaser, a 7-year-old border collie whose owner purports that the dog can recognize 1,022 nouns. On TODAY, Chaser demonstrated that dogs ...

The dog knows the names of 1,022 objects — mostly toys like distinct balls, stuffed animals, and Frisbees — and can fetch them on command. She understands the principle of exclusion, grabbing a toy ...

I've always been inspired by Chaser, the legendary border collie, and her amazing ability to learn the names of over 1,000 toys and different grammatical sentences, Chaser's story is well-documented ...