Adaptive Introgression: The Seeds of Resistance Loren Rieseberg  Current Biology  Volume 21, Issue 15, Pages R581-R583 (August 2011) DOI: 10.1016/j.cub.2011.06.038 Copyright © 2011 Elsevier Ltd Terms and Conditions

Figure 1 A Rat Poison Peddler. A drawing by Paul Gavarni (1804–1866). Although anticoagulant rodenticides were first introduced in the 1950s, humans have been poisoning rodents for centuries, with arsenic serving as the poison of choice during the Victorian era. Current Biology 2011 21, R581-R583DOI: (10.1016/j.cub.2011.06.038) Copyright © 2011 Elsevier Ltd Terms and Conditions

Figure 2 Resister. A European house mouse from a region in Europe where mice carry a 20 Mb introgressed fragment from the Algerian mouse. Photo: Stefan Endepols. Current Biology 2011 21, R581-R583DOI: (10.1016/j.cub.2011.06.038) Copyright © 2011 Elsevier Ltd Terms and Conditions