Strawberries for Dinner!?

Ok, I just experienced something bizarre in my garden. I was checking out my strawberries and found a ripe one so I thought I would pick it. When I lifted it up, about 50 ants went scurrying out from under it and when I turned it over, the whole underside had been eaten. I realize that slugs like them and so do birds but I have never had a problem with ants eating my strawberries. They are now munching on Terro ant poison. Take that sweet stuff back to the nest and share it why don't ya!!!! Leave my strawberries alone dangit!