Did they have other animals on the farm, such as pigs?
Early on there was a lot of discussion around possible animal involvement (dingos and feral pigs particularly), but that was pretty solidly ruled out. They're on the other side of the dingo fence, so there aren't many around and there was no sign of one, as well as no sign of a struggle. No signs of feral pigs in the immediate area either. And wedgetail eagles can't lift prey Gus's size (which was another popular theory for how he could just vanish with no tracks).Did they have other animals on the farm, such as pigs?