Even though pigs are usually quite peaceful, they can demonstrate aggression if they feel threatened. Since dogs and pigs have different communication styles, it is possible for this to happen.

(NewsNation) — A growing and aggressive breed of “super pigs” from Canada could soon be on America’s doorstep. The super pigs are a hybrid of wild boars and domestic pigs. They currently ...

Feral pigs can be aggressive, and may pose a threat to the public or a hunter if they are wounded. Accordingly, the regulation requires anyone harvesting a feral pig to possess a valid hunting ...

The rumble is used by male guinea pigs to get the attention of female piggies, whilst females will rumble to signal to males that they are ready to mate. This signals aggression or agitation.