Who spit on the gorilla?
Saliva is so useful!
Saliva keeps your mouth wet.
Saliva soften your food so you can digest what you eat.
Saliva prevents germs from getting into your mouth.Who spit on the gorilla?
Saliva is so useful!
Saliva keeps your mouth wet.
Saliva soften your food so you can digest what you eat.
Saliva prevents germs from getting into your mouth.
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