150-million-year-old teeth expose dinosaurs’ secret diets - ScienceDaily 
	
		
	150-million-year-old teeth expose dinosaurs’ secret diets  ScienceDailyMicroscopic Tooth Scratches Unlock Secrets of Sauropod Dinosaurs&nb		...
	
	
	150-million-year-old,teeth,expose,dinosaurs’,secret,diets,-,ScienceDaily