Well, today I saw one outside the DNA building hanging right by the door. I think it is a Big Brown Bat (Eptesicus fuscus) because according to this PDF document, it should have long silky fur and a large nose.
Long silky fur
A fairly large nose.
What a cool creature. I hope it finds a better place to rest tomorrow because it was about 3 feet off the ground next to the building entrance, not an ideal place at all.