https://www.sciencedaily.com/releases/2018/07/180705144414.htm

"It's important for us to realize this distinction, in part because every aggressive behavior we see is not bullying," says Jamie Ostrov, lead author of the forthcoming paper to be published in a special issue of the Journal of Child and Family Studies.

"Certainly aggressive behaviors are problematic in their own right and also deserve our attention, but recognizing the differences in the two behaviors means we can begin a discussion about whether we have to do something different with interventions related to general aggression."