image: Mestizo house at Checherta shows external enclosure wall. This material relates to a paper that appeared in the Feb. 12, 2016 issue of Science, published by AAAS. The paper, by J.F. Ruiz-Calderon at University of Puerto Rico in San Juan, Puerto Rico, and colleagues was titled, "Walls talk: Microbial biogeography of homes spanning urbanization." view more
Credit: [Credit: Humberto Cavallin]