In the end, it's a bit of both. The two of them reach a small clearing surrounded by brush when the dog stops and stands stiff legged, hackles raised. Then, he starts to growl low in his throat.

Something BIG is moving through the brush. A moment later, there is a horrifically loud squeal of challenge as the monstrous boar tears through the brush.

Ye gods, it's HOGZILLA! A normal boar can weigh more than 200lbs, but she's far larger, massing about twice what Shephard does.