Prolonged maternal investment in northern bottlenose whales alters our understanding of beaked whale reproductive life history Feyrer, Laura Joan ; Zhao, Shu ting ; Whitehead, Hal ; Matthews, Cory J. D. Abstract Publication: PLoS ONE Pub Date: June 2020 DOI: 10.1371/journal.pone.0235114 Bibcode: 2020PLoSO..1535114F