the lives of the animals have not been improved, especially after Napoleon becomes dictatorial. In the end, they suffer.
At first when everyone works together to get the hay in, their efforts are profitable. However, after a time the animals realize that the pigs enjoy the cow's milk in their mash, and the "windfalls" such as the ripening apples are not shared, but brought to the harness room for the pigs (Ch. 3).
Then, in Chapter 4, the animals must engage in battle with the humans [the Battle of the Cowshed], and some of the sheep are killed.
