Labrador mutt/doc

You can domesticate one by giving them dog food (apply it on them). Domesticated dogs will automatically attack any non-friendly creature they detect. You can stop this behaviour by using a dog whistle, which will make them to follow you passively. There's no limit to the amount of dogs you can domesticate at once.

Dogs are nearly impossible to hit with 10+ torso encumbrance, so they could be used to train combat while wearing 10+ torso encumbrance. (misses can train)

They often travel in packs in the wild of around three. They will first appear as Tracking, then turn Hostile when you get close. Not as deadly as wolves, but still deadly.