Bull Elephant Seals
Only dominant bull elephant seals have the privilege of breeding. A contender bellows for a shot at the title. A dominant bull answers back with a roar.
That may be enough persuasion. If not, a body slam or 2 settles the bout for a subordinate looking to step up for sex. The subordinate lumbers off down the beach as fast as it can, the victor bellowing in noisy but harmless pursuit, mostly as advertisement for other younger bulls with the same idea.
A dominant bull being displaced takes more persuasion. Contests resulting in overthrow get bloody and can even be fatal for a loser. Denial is the longest river.