The Evolution of Seabirds in the Humboldt Current: New Clues from the Pliocene of Central Chile Chávez Hoffmeister, Martín ; Carrillo Briceño, Jorge D. ; Nielsen, Sven N. Abstract Publication: PLoS ONE Pub Date: March 2014 DOI: 10.1371/journal.pone.0090043 Bibcode: 2014PLoSO...990043C