Are you sure this is thrown up apples? I have seen where a bear heading north left a huge pile of apples that exited the south end. This looked as fresh as all get out but my buddy wouldn't taste them.. What I am saying is a bear is a pig, they eat alot and don't digest it. If it is vomit, its due to having bears compete for food, so a bear consumes as much as possible, then vomits and continues to eat.