image: A cargo ship in the Panama Canal traverses volcanic rocks that helped form the Isthmus of Panama. This material relates to a paper that appeared in the August 17, 2016, issue of Science Advances, published by AAAS. The paper, by A. O'Dea at Smithsonian Tropical Research Institute in Balboa, Panama, and colleagues was titled, 'Formation of the Isthmus of Panama.' view more
Credit: Aaron O'Dea