A dog named Chaser could recognize more than a thousand nouns by ear and brought his owner objects that these words denoted.
This skill helped her become the smartest dog in the world.
This amazing story begins in 2004, when retired psychiatrist John Pilley from South Carolina bought himself a puppy.
He chose a Border Collie as his pet.
It is not entirely clear whether the man was conducting a scientific experiment or simply working with his dog in his free time.
All that is known is that he spent three years training his pet, showing him unfamiliar objects and naming them about forty times.
Then Pilli would hide the object and ask the dog to find it and bring it back.
Chaser was trained using 800 stuffed animals, 116 balls, 26 frisbees and a set of plastic objects. As a result, the dog was introduced to 1,022 nouns.
Thus, it turned out that the dog could memorize one new word a day for a long time. Having achieved an impressive result, John stopped working with the dog.