Wolves on polar sea don't use the usual "arctic wolf" template, but a separate template which changes two properties: It makes the wolves violent, but also marks them as "domestic", which results in units not being able to fight them with ranged attacks (buildings however do fight them with ranged attacks). That's odd as it's a different behavior how units approach these wolves, compared to wolves on all other maps.
This change removes the "domestic" attribute from the special wolves type for polar sea, to make the interaction with those wolves more natural. As a result of these changes this map might have gotten a bit easier, however I did some testing and it wasn't that much noticeable.