As we've recently learned, toddlers can feel schadenfreude. So how about dogs? Well, no one's tested them for schadenfreude (yet), but in this study, the researchers found that dogs experience a related emotion: jealousy. To test this, they watched dogs' reactions when their owners paid attention to either a stuffed dog or a jack o' lantern (a control). They found that the dogs displayed more jealous behaviors, such as snapping at the object and getting between their owner and the object, w
