Barking mad: Experts find dogs get jealous too

Experiments by researchers revealed dogs exhibited jealous behaviour when their owner petted a stuffed dog.

Dogs suffer from jealousy, scientists have proved — confirming the long-held suspicions of owners and backing up an observation first made by Charles Darwin.

Experiments by researchers revealed that dogs exhibited jealous behaviour such as snapping and pushing when their owner displayed affection for a stuffed dog that barked, whined and wagged its tail.