<p>This study documents a rare aggressive interaction between two striped hyenas (<i>Hyaena hyaena</i>) observed in northern Israel. Agonistic behaviors, which include aggression, submission, and threat displays, are essential for managing social hierarchies and mitigating harm in animal societies. Although striped hyenas typically engage in ritualized behaviors to resolve conflicts non-lethally, the observed confrontation involved intense biting, vocalizations, and significant injuries. The fight’s cause remains unclear. This observation, combined with limited prior reports of similar behavior, highlights the need for continued research and citizen science contributions to better understand the complex and variable social dynamics of striped hyenas. Clinical trial number: Not applicable</p>