A very interesting article about pre-Clovis inhabitation of Florida recently published in Science Advances is an eye opener. The article is the work of  Jessi J. Halligan, Michael R. Waters, Angelina Perrotti, Ivy J. Owens, Joshua M. Feinberg, Mark D. Bourne, Brendan Fenerty, Barbara Winsborough, David Carlson, Daniel C. Fisher, Thomas W. Stafford Jr and James S. Dunbar. The complete article can be read at:  http://advances.sciencemag.org/content/2/5/e1600375.full Although the discovery was