Jaime Andrés Rivas-Pardo, Carmen L. Badilla, Rafael Tapia-Rojo, Álvaro Alonso-Caballero, and Julio M. Fernández PNAS published ahead of print August 27, 2018 https://doi.org/10.1073/pnas.1807689115 Add to Cart ($10) Edited by Yale E. Goldman, Pennsylvania Muscle Institute, University of Pennsylvania, Philadelphia, PA, and approved August 3, 2018 (received for review May 4, 2018) See full article here