If you've ever had to spell out words like W-A-L-K or T-R-E-A-T around a dog, you know that some dogs listen in to humans' chitchat and can pick out certain key words. Well, it turns out that some ...

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Basket, a 7-year-old female Border collie, knows the names of over 200 dog toys. A new study finds that certain dogs can learn new words simply by overhearing them — much as a human toddler would.