The word stems from the French jalousie, formed from jaloux (jealous), and further from Low Latin zelosus (full of zeal), in … See more

People do not express jealousy through a single emotion or a single behavior. They instead express jealousy through diverse emotions and behaviors, which makes it difficult to form a scientific definition of jealousy. S… See more

Romantic jealousy arises as a result of romantic interest.
It is defined as “a complex of thoughts, feelings, and actions that follow threats to self-esteem and/or threats to the existence or quality o… See more

Sexual jealousy may be triggered when a person's partner displays sexual interest in another person. The feeling of jealousy may be just as powerful if one partner suspects the other is guilty of infidelity. Fearing that their partne… See more

According to Rebecca L. Ammon in The Osprey Journal of Ideas and Inquiry at UNF Digital Commons (2004), the Parental Investment Model based on parental investment theory posits that more men than wome… See more

A study by researchers at the University of California, San Diego, replicated jealousy studies done on humans on canines. They reported, in a paper published in PLOS ONE in 2014, that a significant number of dogs exhibi… See more