Divergent Skull Morphology Supports Two Trophic Specializations in Otters (Lutrinae) Timm-Davis, Lori L. ; DeWitt, Thomas J. ; Marshall, Christopher D. Abstract Publication: PLoS ONE Pub Date: December 2015 DOI: 10.1371/journal.pone.0143236 Bibcode: 2015PLoSO..1043236T