Despite the film's premise, no violence towards animals is ever depicted on camera, nor shown in any great detail.
A character uses tweezers to remove a small bullet/pellet from their neck. Shown in closeup detail. Very bloody and tense.
Two characters fight in a confined space. It starts and ends abruptly. The whole scene is uncomfortably realistic and quite shocking.
A character falls down a steep hill and lands face-first onto a rocky creek-bed. Very bloody and tense.
A character is seen bleeding from an open head-wound. The scene is very intense but shown mostly in shadow.
A character is punched in the face and then kicked in the stomach before being spat on.
A character squeezes broken glass in their palm. Very bloody. The sound design is particularly disturbing. This is later seen again in even closer detail.
A character is grabbed and shoved into a wall by his throat. Brief, no one is injured.
A character is struck in the face with a glass coffee mug. The scene is not particularly bloody but is quite shocking.