October 23, 2019

1,022 – that’s the number of nouns recognized by Chaser, thought to be the world’s smartest dog, who died in July at age 15. Chaser’s owner, a psychology professor, trained her by holding up an object, like a dog toy or Frisbee, repeating its name over and over, and then hiding it and asking her to find it.

SOURCE: New York Times, 8/25/19