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Guess what? Your dog can get jealous when you pay attention to other dogs, other people or even other things.

A new study, published last week in the Proceedings of the National Academy of Sciences, reveals that canines can experience envy.

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A new study reveals that canines can experience envy.
(AP)

Really.

No duh, says Alina Winkleman, who owns Alina's Pet Parlour in Orland Park.

"I didn't need a study to tell me that," agreed Angie Hausner, of K9 Tail Shakers in Frankfort.

Whenever Winkleman pets or pays attention to Cooper, a papillon she is currently fostering, her permanent dog Sonic goes ballistic.

"He comes running up and demands my attention. Then he growls at Cooper."

Winkleman said, "It's worse if food is involved. If one gets a treat, the other gives me the stare-down."

Friederike Range, of the University of Vienna, Austria, said her study proves that dogs react to inequity. If one dog gets something, you better believe another will demand something as well.

But, her study points out, it doesn't matter if one gets a better treat, only that the distribution is fair.

Jay Whittle, veterinarian at Mill Creek Animal Clinic in Palos Park, said dogs, like people, experience a range of emotions.

"I've seen them walk out of here embarrassed after being groomed," he said. "Others are downright proud."

Jealousy, he said, is an easy emotion to detect in a canine. It's expressed through a demand for attention.

While all breeds experience emotions, some are more inclined to act on them.

"Terriers are needy; Newfoundlands are not," Whittle said.

Hausner, who runs a social boarding facility, said boxers, dachshunds, terriers and great Danes tend to get more jealous than retrievers do.