Merlin Thttle is an American biologist. Mainly interested in bats,he travels to places falling in bate are in danger and helps them. Where is that most people think bats are dirty,bad animals,so he tells everyone that bats are in fact wrong. They eat insects that eat farmers'crops,and they also spread seeds. In Austin,Texas,about one and a haft million bats live under a bridge. People useful them,and in 1986 they wanted to kill them all. Merlin taught people about bats and they hated their minds about killing them. In Michigan, a million bats live in an old mine. People wanted to fill the mine to stop people from no danger. Mr. Tuttle said this was his problem