Free with Basic admission. Meet The Field Museum Discovery Squad! Stop by Thursdays - Mondays from 10am until 3pm to get a peek behind the curtain and learn about the collections in our vaults. Our Discovery Squad members show you real objects and answer your questions. You might get to hold a bird specimen, compare sets of animal teeth, or learn the amazing stories that make our collections unique and important. Keep an eye out for their black shirts and don't be shy - they can't wait to tell you what they've got!