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Dentition

Cara Santa Maria

WATCH: Of Multituberculates And Men

HuffingtonPost.com | Cara Santa Maria | Posted 05.15.2012 | Science

2012-03-16-Screenshot20120316at2.18.41PM.jpgAlthough humans never walked with dinosaurs (you hear that, Santorum?), some of our earliest ancestors seem to have done so.