Marshall had spent the night trying to remember everything he every learned about vampire bats, which now that he was one he found was not enough. He though about their echolocation ability and how he might be able to do the same thing. He thought about their feeding habits, which was manly blood. He even remembered that they had a form of heat sense that allowed them to pretty much see the blood inside others. This was really the first time that Marshall put any thought into what he was becoming and to be honest he was kind of freaked out by it.