You can probably tell when your dog is happy or sad, and now a study shows your dog likely feels jealous at times, too.
According to Animals, University of California, San Diego researchers observed 36 dogs while their owners interacted with a lifelike stuffed dog, a Halloween candy pail and a book.
The owners interacted with all three in an affectionate way.
The dogs were more likely to show jealous behavior like snapping and pushing the object away when the owners interacted with the stuffed dog.
That means the dogs were able to appropriately direct their jealousy, the researchers concluded.