Implications of Diet for the Extinction of Saber-Toothed Cats and American Lions DeSantis, Larisa R. G. ; Schubert, Blaine W. ; Scott, Jessica R. ; Ungar, Peter S. Abstract Publication: PLoS ONE Pub Date: December 2012 DOI: 10.1371/journal.pone.0052453 Bibcode: 2012PLoSO...752453D