They swallowed it whole. Their teeth were used to rip the meat or plants into mouth-sized pieces, but were not used for chewing.

VOA: special.2010.06.04

Scientists say the diet of prehistoric humans probably required more chewing teeth.

VOA: special.2011.08.10

Chewing takes time and energy which a dinosaur could not waste.

VOA: special.2010.06.04

The cow lay quietly,chewing some hay.

VOA: special.2010.01.09