Authors: Rolf Quam; Ignacio Martínez; Manuel Rosa; Alejandro Bonmatí; Carlos Lorenzo; Darryl J de Ruiter; Jacopo Moggi-Cecchi; Mercedes Conde Valverde; Pilar Jarabo; Colin G Menter; J Francis Thackeray; Juan Luis Arsuaga Journal: Sci Adv Date: 2015-09-25 Impact factor: 14.136