Hyenas form coalitions to defend their kills against lions. They are successful when they outnumber lionesses by a factor of 6 but will always retreat if a male lion is present.
Conflict with lions
Hyenas form coalitions to defend their kills against lions. They are successful when they outnumber lionesses by a factor of 6 but will always retreat if a male lion is present.
Ngorongoro Hyena Project 