Are armadillos mammals? Find the answer to this question and many more at Armadillo Online!, a comprehensive armadillo website created by Joshua Nixon, a doctoral student in Zoology at Michigan State University. Nixon's site contains biological information on all twenty species of armadillo as well as photos of eight species. This website also includes a short Natural History article, "a short description of the scientific and medical research uses of the armadillo," a Fact File page, and more. Links to other armadillo information websites are provided as well.