Bats do not bite out of aggression; rather, they bite primarily as a defensive response. If a person picks up, traps, or handles a bat, the bat may bite in an attempt to escape. Bats don’t seek out people to bite them, and intentional aggression toward humans is not part of their behavior. Bats are typically skittish around larger animals ... More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.