Chaser, Credited With Being The World’s Smartest Dog, Dies at 15

the smartest dogChaser, a border collie that can recognize more than 1,000 nouns died of natural causes last week at the age of 15. She referred to as the “world’s smartest dog,” was taught by her owner John Pilley, a professor emeritus of psychology at Wofford College in South Carolina, to do far more than the typical sit, fetch and stay commands.


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