“This is not Starbucks; this is McDonald's,” Grace says as the pug shakes and whimpers while staring at the drive-thru window with wide puppy-dog eyes. “She wanted a pup cup so bad #pug ...

They can use their eyes to convey a range of emotions, from excitement to sadness, and their expressive faces make them hard ...

Turns out, dogs' eyes see much more than just black and white. Consider that the next time you stare into those cute puppy dog eyes. Latest videos How do dogs see the world? Dogs see differently ...