Mullet jumping may sound like an event from the redneck games involving beer, bad haircuts, and 4wheelers. It’s actually far more interesting (though just as poorly understood by science).
The main theories are that mullets jump to avoid predation, to remove parasites, or to break open their egg sacs during spawning season. Much less popular among researchers is the idea that mullets throw themselves out of the water because it’s just plain fun.
In my, albeit limited, experience these past couple years living along the Gulf of Mexico, I noted the mass jumping events during December and January. This lends merit to the sac breaking theory since it happens to correspond with the mullet spawning season (November-January).
No matter why they do it, it does look like they’re having fun!