What are the similarities and differences between Animal Farm and Macbeth? (Response must deal with the theme of "fear".)draw comparisons or...

First of all, for each work you must think about what the author's message is concerning fear, since "fear" alone is not a theme.  In "Macbeth," the titular character arguably rules by fear, as is demonstrated when notable characters like Malcolm and Donalbain must flee the country in fear for their lives, and also when it is intimated through Lennox's dialogue with an unnamed Scottish lord that most Scots suspect Macbeth of the recent murders but are too afraid to do anything about it, even to talk about it openly.

The pigs in "Animal Farm" also rule by fear.  The other animals on the farm are easily influenced by the pigs' threats that Mr. Jones may come back to the farm if they are not obeyed.

Again, think about what is begin said about fear in each of these works.  You may want to analyze how the use of fear tactics from those in absolute power is corruptive.  Both Macbeth and the pigs certainly become corrupt due to their power.