Transition of Eocene Whales from Land to Sea: Evidence from Bone Microstructure Houssaye, Alexandra ; Tafforeau, Paul ; de Muizon, Christian ; Gingerich, Philip D. Abstract Publication: PLoS ONE Pub Date: February 2015 DOI: 10.1371/journal.pone.0118409 Bibcode: 2015PLoSO..1018409H