Scientists — and anyone who lives with a canine — know that dogs pay close attention to the emotion in our voices. They listen for whether our tone is friendly or mean, how the pitch goes up or down and even the rhythms in our speech.
But what about the meaning of the words we say?
Sure, a few studies have reported on supersmart dogs that know hundreds of words. Chaser, a border collie in South Carolina, even learned 1,022 nouns and commands to go with them.