UltimateDude121 t1_iycie8v wrote
Reply to comment by vanriggs in TIL: Dogs don't have digestive enzymes in their saliva, nor can they chew side to side. Their jaws only allow for up-and-down movement because their diet doesn’t need as much chewing as ours does. by theotherbogart
We can move the food around in our mouths using our tongue. Dogs cannot.
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