While it sounds morbid, it really isn't.
In specific, it's the first 8 seconds of a TikTok about this semi-professional wildlife account. It's this nighttime, black and white footage of this comically large, cylindrical cage looming over these hogs with heartbeat noises over it for 3 seconds. Suddenly, the cage drops with this dramatic boom that echoes for another few seconds while dust is flying. Meanwhile, the hogs are running around in like 2x speed, and once the boom subsides the editor places stock pig snorts over the video that makes the whole clip feel surreal. I don't remember the point of this wild hog-trapping contraption, I would hope nothing really bad happened to the hogs, but I don't know.