What is the Purpose of a Dog's Dew Claw? | CANIDAE® - Do cats and dogs have thumbs
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What if Cats and Dogs had Opposable Thumbs Day aims to give us all Without them, we wouldn't be able to do half the things we can – open things, turn. Most species do not have opposable thumbs. In fact, it's one of the things that sets us humans apart. But dogs and cats do have “thumbs” or first.