Dogs use facial expressions to communicate with humans and other canines. Most can have multiple implications that change based on the situation.

This dog expression might show up if you’ve just ... out on walks or romping with pals at the dog park. A grinning dog face ...

There is a distinctive and easily recognized open-mouth expression that is the canine equivalent of a human smile, ...

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I have looked at his face a lot and he doesn't seem to ... is that there is a limitation on the range of facial expressions produced by dogs. This is because dogs have a muzzle which is ...