Best Essays
Rico, the song

Move over Rico

In "The First Word," I wrote about Rico, a German border Collie who could identify about 200 objects his owners had taught him. Now, in South Carolina, another border collie has been taught to understand 1022 nouns. His name is Chaser, and he was trained by his owner, a retired psychology professor. Nicholas Wade writes about Chaser in this week's New York Times Science section.