Out of the Pacific and Back Again: Insights into the Matrilineal History of Pacific Killer Whale Ecotypes Foote, Andrew D. ; Morin, Phillip A. ; Durban, John W. ; Willerslev, Eske ; Orlando, Ludovic ; Gilbert, M. Thomas P. Abstract Publication: PLoS ONE Pub Date: September 2011 DOI: 10.1371/journal.pone.0024980 Bibcode: 2011PLoSO...624980F