Talk:Depths Worm/@comment-81.178.195.123-20140131233809/@comment-3284423-20140301124333

They only turn if there has been a full moon since the last time you entered a cave. The cave time has to resynch with the surface time when you enter it, so while it's resynching the full moon that it reads as having happened will happen again for the pigs, causing them to turn.