Jealousy is a complex emotion familiar to humans, often arising from a fear of losing attention, affection, or resources to someone else. From relationships to workplace rivalries, jealousy is deeply ...

Using data from 23 studies of what psychologists call 'inequity aversion,' researchers combed through results of more than 60,000 observations involving 18 animal species. In what they said was the ...

How much do you know about the old green-eyed monster? Is jealousy a sign of love or of a personality defect? Is it one of those things that are part of human nature and can't be changed? Take this ...

It’s a question that has puzzled thinkers for centuries: Are we humans alone in our pursuit of fairness and the frustration we feel when others get what we want? In recent years, evolutionary ...