They can spawn in packs of 3 up to 5 at a time and when the highest level direwolf in the pack gets close enough to you it will point its head to the sky and howl, then after a second the other direwolfs will howl, after about 7 seconds straight of just howling their heads will turn back down and you will get rekt since they get a buff that increases their damage resistance and damage and also stacks multiplicitively with the mate boost so each one can do 55 damage or more with said buffs.

The best way to tame one of these is to kidnap one using a flyer like an argy then bring it somewhere safer, or kill the other direwolves first, then wearing armor tranq the one you want to tame in the head using a crossbow until it knocks out. Then just feed it food until it tames.

They also won't attack you if you are underwater but dont use this to knock one out as it will most likely be with 2 or more direwolves.