Wolf

The Wolf is one of many animals you can Encounter along your journey, in various ways. You can get up to 4 Journal entries about the Wolf.

Howling
Either your character or Noodle can hear the wolf howl and you can decide whether or not to pursue it. When you're alone, you're most likely to walk into an empty area and talk to yourself about whether or not the wolf is stalking you. This will add an entry in your Journal under the Wolf's name that says "___"

If you have Noodle in your party, you can follow Noodle to find a Wolf trapped in an animal trap. If you decide to save the wolf instead of killing it for its meat, another entry will be added to your Journal: "____"

Wolf Attack
You have a chance to encounter the wolf while sledding. He will walk alongside the trail. Your character will talk to him about not coming any closer, but no matter what the Wolf will attack.

If you went to follow the howling earlier and got the entry about the wolf stalking you, you will comment on this when you first notice this wolf.

If you have Barkley in your sled team, he will leap forward and save you from the Wolf, getting himself injured in the process. You will have a chance to either shoot the wolf (gaining 4-5 meat), wave your rifle at the wolf, or throw meat at it. Afterwards, Barkley will ask for a belly rub, and then he will be loaded into the sled. In order to heal him, you must use a Med Kit. This is the first part of Barkley's quest.

If you do not have Barkley on your team, the Wolf will bite your arm and your dogs will bark at it and it will run off. You will then receive the "Injured" status and need to use a Med Kit to clear it.

Hunting
You have a chance to encounter a wolf when you stumble across an elk that is dead on a lake. If you chose to wait, a Wolf will come up and start to eat on the Elk. You can then either chose to shoot it (gaining 4-5 meat) or you can chose to leave.

In another instance, if you injure but don't fully kill an Elk, a Wolf has a chance of coming up and finishing the job. You still have a chance to collect the meat, in some cases.