"and what they leave shall be eaten by the animals of the field": What is the intent of this? From (Devarim 14:22) "Tithe shall you tithe," I would understand even the fruits of shevi'ith, (but) (Leviticus 25:6) "for you and your man-servant and your maid-servant … (7) and for your beast" likens man to beast. Just as a beast eats what is fit for it, untithed, on shevi'ith, so, a man.