Yeah, the wolf one is actually a pain especially when you don't know it exist as a new player.
You can get good stuff and raw meat from it but being attacked by 5 wolves at most without bonemass with just max iron stuff is a pain to deal with.

I think the attacks are a great part of the game cause it forces them too to explore some bits of defense and equipment usage, what should be tone down is where these attacks can happen. (Like for example, kids who just like to build with poor gear should not be attacked by furlings or wolves, or even blobs/slimes)