Ignobel nomination: Astolfo G. Mello Araujo and José Carlos Marcelino of Universidade de São Paulo, Brazil, for measuring how the course of history, or at least the contents of an archaeological dig site, can be scrambled by the actions of a live armadillo. REFERENCE: "The Role of Armadillos in the Movement of Archaeological Materials: An Experimental Approach," Astolfo G. Mello Araujo and José Carlos Marcelino, Geoarchaeology, vol. 18, no. 4, April 2003, pp. 433-60.